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CVE-2026-107397 (GCVE-0-2026-107397)

Vulnerability from nvd – Published: 2026-10-08 20:01 – Updated: 2026-10-08 20:01

Title

Indico: Cross-Site-Scripting in minutes editor

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, users who can create content, including speakers who can create minutes, can store crafted HTML in event minutes. When concurrent edits are made to the same minutes, the minute editor conflict UI can execute attacker-controlled script in the viewer's browser in the Indico origin. This issue is fixed in version 3.3.13.

Severity

4.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/pull/7619	x_refsource_MISC
https://github.com/indico/indico/commit/d4c8c7127…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.13	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.13

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "indico",
          "vendor": "indico",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.3.13"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, users who can create content, including speakers who can create minutes, can store crafted HTML in event minutes. When concurrent edits are made to the same minutes, the minute editor conflict UI can execute attacker-controlled script in the viewer\u0027s browser in the Indico origin. This issue is fixed in version 3.3.13."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-08T20:01:56.769Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/indico/indico/security/advisories/GHSA-cw24-x4mj-fw3q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/indico/indico/security/advisories/GHSA-cw24-x4mj-fw3q"
        },
        {
          "name": "https://github.com/indico/indico/pull/7619",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/pull/7619"
        },
        {
          "name": "https://github.com/indico/indico/commit/d4c8c7127176efa4cb53c64119ca8ee2b551be18",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/commit/d4c8c7127176efa4cb53c64119ca8ee2b551be18"
        },
        {
          "name": "https://github.com/indico/indico/releases/tag/v3.3.13",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/releases/tag/v3.3.13"
        }
      ],
      "source": {
        "advisory": "GHSA-cw24-x4mj-fw3q",
        "discovery": "UNKNOWN"
      },
      "title": "Indico: Cross-Site-Scripting in minutes editor"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-107397",
    "datePublished": "2026-10-08T20:01:56.769Z",
    "dateReserved": "2026-10-07T21:07:54.989Z",
    "dateUpdated": "2026-10-08T20:01:56.769Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-107396 (GCVE-0-2026-107396)

Vulnerability from nvd – Published: 2026-10-08 20:00 – Updated: 2026-10-09 15:14

Title

Indico: Cross-Site-Scripting in link fields

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, users who can manage events or create content, including speakers who can upload material, can store crafted javascript URLs in fields that accept custom URLs. A user who follows one of these URLs can execute attacker-controlled script in the user's browser in the Indico origin. This issue is fixed in version 3.3.13.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 20:23 UTC

CWE

CWE-692 - Incomplete Denylist to Cross-Site Scripting

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/pull/7619	x_refsource_MISC
https://github.com/indico/indico/commit/d4c8c7127…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.13	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.13

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-107396",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T20:23:12.111896Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-09T15:14:02.272Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "indico",
          "vendor": "indico",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.3.13"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, users who can manage events or create content, including speakers who can upload material, can store crafted javascript URLs in fields that accept custom URLs. A user who follows one of these URLs can execute attacker-controlled script in the user\u0027s browser in the Indico origin. This issue is fixed in version 3.3.13."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-692",
              "description": "CWE-692: Incomplete Denylist to Cross-Site Scripting",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-08T20:00:04.340Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/indico/indico/security/advisories/GHSA-c4wc-ggrj-jg9v",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/indico/indico/security/advisories/GHSA-c4wc-ggrj-jg9v"
        },
        {
          "name": "https://github.com/indico/indico/pull/7619",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/pull/7619"
        },
        {
          "name": "https://github.com/indico/indico/commit/d4c8c7127176efa4cb53c64119ca8ee2b551be18",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/commit/d4c8c7127176efa4cb53c64119ca8ee2b551be18"
        },
        {
          "name": "https://github.com/indico/indico/releases/tag/v3.3.13",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/releases/tag/v3.3.13"
        }
      ],
      "source": {
        "advisory": "GHSA-c4wc-ggrj-jg9v",
        "discovery": "UNKNOWN"
      },
      "title": "Indico: Cross-Site-Scripting in link fields"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-107396",
    "datePublished": "2026-10-08T20:00:04.340Z",
    "dateReserved": "2026-10-07T21:07:54.989Z",
    "dateUpdated": "2026-10-09T15:14:02.272Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-107395 (GCVE-0-2026-107395)

Vulnerability from nvd – Published: 2026-10-08 19:57 – Updated: 2026-10-09 11:49

Title

Indico: Missing access check in legacy session export API

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, an authenticated user can misuse the legacy session export API to retrieve details for a restricted session without access to that session, as long as the containing event is accessible. The missing access check can disclose session metadata such as the title, description, and conveners. This issue is fixed in version 3.3.13.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-09 11:48 UTC

CWE

CWE-862 - Missing Authorization

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/commit/524e8e93e…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.13	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.13

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-107395",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-09T11:48:53.899951Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-09T11:49:03.687Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "indico",
          "vendor": "indico",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.3.13"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, an authenticated user can misuse the legacy session export API to retrieve details for a restricted session without access to that session, as long as the containing event is accessible. The missing access check can disclose session metadata such as the title, description, and conveners. This issue is fixed in version 3.3.13."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-08T19:57:39.353Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/indico/indico/security/advisories/GHSA-6p4f-j8j6-463q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/indico/indico/security/advisories/GHSA-6p4f-j8j6-463q"
        },
        {
          "name": "https://github.com/indico/indico/commit/524e8e93eadcd8484905b1147020a35f5dce6038",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/commit/524e8e93eadcd8484905b1147020a35f5dce6038"
        },
        {
          "name": "https://github.com/indico/indico/releases/tag/v3.3.13",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/releases/tag/v3.3.13"
        }
      ],
      "source": {
        "advisory": "GHSA-6p4f-j8j6-463q",
        "discovery": "UNKNOWN"
      },
      "title": "Indico: Missing access check in legacy session export API"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-107395",
    "datePublished": "2026-10-08T19:57:39.353Z",
    "dateReserved": "2026-10-07T21:07:54.989Z",
    "dateUpdated": "2026-10-09T11:49:03.687Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-107394 (GCVE-0-2026-107394)

Vulnerability from nvd – Published: 2026-10-08 19:55 – Updated: 2026-10-09 15:54

Title

Indico: Incomplete Server-Side Request Forgery (SSRF) check

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, the previous fix for CVE-2026-25738 did not cover an edge case, allowing an event organizer to submit a crafted URL that points to a prohibited local target but is accepted as valid by Indico. The organizer can read data returned by the target through affected Indico features. This issue is fixed in version 3.3.13.

Severity

6.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-09 15:54 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/pull/7573	x_refsource_MISC
https://github.com/indico/indico/commit/44540e70a…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.13	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.13

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-107394",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-09T15:54:32.591965Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-09T15:54:49.239Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "indico",
          "vendor": "indico",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.3.13"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, the previous fix for CVE-2026-25738 did not cover an edge case, allowing an event organizer to submit a crafted URL that points to a prohibited local target but is accepted as valid by Indico. The organizer can read data returned by the target through affected Indico features. This issue is fixed in version 3.3.13."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-08T19:55:07.839Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/indico/indico/security/advisories/GHSA-2v95-h47v-g4x9",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/indico/indico/security/advisories/GHSA-2v95-h47v-g4x9"
        },
        {
          "name": "https://github.com/indico/indico/pull/7573",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/pull/7573"
        },
        {
          "name": "https://github.com/indico/indico/commit/44540e70ab4e20a12f14ddba5218a33749a86736",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/commit/44540e70ab4e20a12f14ddba5218a33749a86736"
        },
        {
          "name": "https://github.com/indico/indico/releases/tag/v3.3.13",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/indico/indico/releases/tag/v3.3.13"
        }
      ],
      "source": {
        "advisory": "GHSA-2v95-h47v-g4x9",
        "discovery": "UNKNOWN"
      },
      "title": "Indico: Incomplete Server-Side Request Forgery (SSRF) check"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-107394",
    "datePublished": "2026-10-08T19:55:07.839Z",
    "dateReserved": "2026-10-07T21:07:54.989Z",
    "dateUpdated": "2026-10-09T15:54:49.239Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-33046 (GCVE-0-2026-33046)

Vulnerability from nvd – Published: 2026-03-23 22:45 – Updated: 2026-03-24 13:42

Title

Indico discloses local files resulting in Remote Code Execution through LaTeX injection

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.12, due to vulnerabilities in TeXLive and obscure LaTeX syntax that allowed circumventing Indico's LaTeX sanitizer, it is possible to use specially-crafted LaTeX snippets which can read local files or execute code with the privileges of the user running Indico on the server. Note that if server-side LaTeX rendering is not in use (ie `XELATEX_PATH` was not set in `indico.conf`), this vulnerability does not apply. It is recommended to update to Indico 3.3.12 as soon as possible. It is also strongly recommended to enable the containerized LaTeX renderer (using `podman`), which isolates it from the rest of the system. As a workaround, remove the `XELATEX_PATH` setting from `indico.conf` (or comment it out or set it to `None`) and restart the `indico-uwsgi` and `indico-celery` services to disable LaTeX functionality.

Severity

7.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-24 13:42 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/commit/0adb70f0e…	x_refsource_MISC
https://github.com/indico/indico/commit/1dbb12525…	x_refsource_MISC
https://github.com/indico/indico/commit/5f24d23ce…	x_refsource_MISC
https://github.com/indico/indico/commit/fb169ced7…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.12	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.12

Show details on NVD website

JSON

To clipboard

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CVE-2026-28352 (GCVE-0-2026-28352)

Vulnerability from nvd – Published: 2026-02-27 21:01 – Updated: 2026-03-03 20:29

Title

Indico missing access check in event series management API

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.11, the API endpoint used to manage event series is missing an access check, allowing unauthenticated/unauthorized access to this endpoint. The impact of this is limited to getting the metadata (title, category chain, start/end date) for events in an existing series, deleting an existing event series, and modifying an existing event series. This vulnerability does NOT allow unauthorized access to events (beyond the basic metadata mentioned above), nor any kind of tampering with user-visible data in events. Version 3.3.11 fixes the issue. As a workaround, use the webserver to restrict access to the series management API endpoint.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-03 20:29 UTC

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/releases/tag/v3.3.11	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.11

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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CVE-2026-25739 (GCVE-0-2026-25739)

Vulnerability from nvd – Published: 2026-02-19 15:39 – Updated: 2026-02-19 19:49

Title

Indico affected by Cross-Site-Scripting via material uploads

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Versions prior to 3.3.10 are vulnerable to cross-site scripting when uploading certain file types as materials. Users should upgrade to version 3.3.10 to receive a patch. To apply the fix itself updating is sufficient, but to benefit from the strict Content Security Policy (CSP) Indico now applies by default for file downloads, update the webserver config in case one uses nginx with Indico's `STATIC_FILE_METHOD` set to `xaccelredirect`. For further directions, consult the GitHub Security advisory or Indico setup documentation. Some workarounds are available. Use the webserver config to apply a strict CSP for material download endpoints, and/or only let trustworthy users create content (including material uploads, which speakers can typically do as well) on Indico.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-19 19:48 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/releases/tag/v3.3.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2026-25738 (GCVE-0-2026-25738)

Vulnerability from nvd – Published: 2026-02-19 15:30 – Updated: 2026-02-19 17:34

Title

Indico has Server-Side Request Forgery (SSRF) in multiple places

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Versions prior to 3.3.10 are vulnerable to server-side request forgery. Indico makes outgoing requests to user-provides URLs in various places. This is mostly intentional and part of Indico's functionality but is never intended to let users access "special" targets such as localhost or cloud metadata endpoints. Users should upgrade to version 3.3.10 to receive a patch. Those who do not have IPs that expose sensitive data without authentication (typically because they do not host Indico on AWS) are not affected. Only event organizers can access endpoints where SSRF could be used to actually see the data returned by such a request. For those who trust their event organizers, the risk is also very limited. For additional security, both before and after patching, one may also use the common proxy-related environment variables (in particular `http_proxy` and `https_proxy`) to force outgoing requests to go through a proxy that limits requests in whatever way you deem useful/necessary. These environment variables would need to be set both on the indico-uwsgi and indico-celery services.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-19 17:22 UTC

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/commit/70d341826…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2025-59035 (GCVE-0-2025-59035)

Vulnerability from nvd – Published: 2025-09-10 16:03 – Updated: 2025-09-11 14:42

Title

Indico vulnerable to Cross-Site Scripting via LaTeX math code

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.

Severity

4.6 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-11 14:26 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/releases/tag/v3.3.8	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.8

Show details on NVD website

JSON

To clipboard

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CVE-2025-59034 (GCVE-0-2025-59034)

Vulnerability from nvd – Published: 2025-09-10 16:01 – Updated: 2025-09-11 14:42

Title

Indico may disclose unauthorized user details access via legacy API

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, a legacy API to retrieve user details could be misused to retrieve profile details of other users without having admin permissions due to a broken access check. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, it is possible to restrict access to the affected API (e.g. in the webserver config).

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-11 14:27 UTC

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/releases/tag/v3.3.8	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.8

Show details on NVD website

JSON

To clipboard

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CVE-2025-53640 (GCVE-0-2025-53640)

Vulnerability from nvd – Published: 2025-07-14 20:14 – Updated: 2025-07-22 15:29

Title

Indico vulnerable to user enumeration via API endpoint

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Starting in version 2.2 and prior to version 3.3.7, an endpoint used to display details of users listed in certain fields (such as ACLs) could be misused to dump basic user details (such as name, affiliation and email) in bulk. Version 3.3.7 fixes the issue. Owners of instances that allow everyone to create a user account, who wish to truly restrict access to these user details, should consider restricting user search to managers. As a workaround, it is possible to restrict access to the affected endpoints (e.g. in the webserver config), but doing so would break certain form fields which could no longer show the details of the users listed in those fields, so upgrading instead is highly recommended.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-07-15 15:00 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-639 - Authorization Bypass Through User-Controlled Key
CWE-862 - Missing Authorization

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://docs.getindico.io/en/stable/config/settin…	x_refsource_MISC
https://docs.getindico.io/en/stable/installation/…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.7	x_refsource_MISC
https://www.vicarius.io/vsociety/posts/cve2025536…
https://www.vicarius.io/vsociety/posts/cve2025536…

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: >= 2.2, < 3.3.7

Show details on NVD website

JSON

To clipboard

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CVE-2024-45399 (GCVE-0-2024-45399)

Vulnerability from nvd – Published: 2024-09-04 20:12 – Updated: 2024-09-04 20:17

Title

Indico has a Cross-Site-Scripting during account creation

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In Indico prior to version 3.3.4, corresponding to Flask-Multipass prior to version 0.5.5, there is a Cross-Site-Scripting vulnerability during account creation when redirecting to the `next` URL. Exploitation requires initiating the account creation process with a maliciously crafted link, and then finalizing the signup process. Because of this, it can only target newly created (and thus unprivileged) Indico users. Indico 3.3.4 upgrades the dependency on Flask-Multipass to version 0.5.5, which fixes the issue. Those who build the Indico package themselves and cannot upgrade can update the `flask-multipass` dependency to `>=0.5.5` which fixes the vulnerability. Otherwise one could configure one's web server to disallow requests containing a query string with a `next` parameter that starts with `javascript:`.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-04 20:17 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1395 - Dependency on Vulnerable Third-Party Component

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/flask-multipass/commit/…	x_refsource_MISC
https://github.com/indico/indico/commit/7dcb57383…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.4	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.4

Show details on NVD website

JSON

To clipboard

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CVE-2023-37901 (GCVE-0-2023-37901)

Vulnerability from nvd – Published: 2023-07-21 18:14 – Updated: 2024-10-10 18:58

Title

Cross-Site-Scripting via confirmation prompts

Summary

Indico is an open source a general-purpose, web based event management tool. There is a Cross-Site-Scripting vulnerability in confirmation prompts commonly used when deleting content from Indico. Exploitation requires someone with at least submission privileges (such as a speaker) and then someone else to attempt to delete this content. Considering that event organizers may want to delete suspicious-looking content when spotting it, there is a non-negligible risk of such an attack to succeed. The risk of this could be further increased when combined with some some social engineering pointing the victim towards this content. Users need to update to Indico 3.2.6 as soon as possible. See the docs for instructions on how to update. Users who cannot upgrade should only let trustworthy users manage categories, create events or upload materials ("submission" privileges on a contribution/event). This should already be the case in a properly-configured setup when it comes to category/event management. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-10 18:22 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/commit/2ee636d31…	x_refsource_MISC
https://docs.getindico.io/en/stable/installation/…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.2.6	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.2.6

Show details on NVD website

JSON

To clipboard

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CVE-2026-107397 (GCVE-0-2026-107397)

Vulnerability from cvelistv5 – Published: 2026-10-08 20:01 – Updated: 2026-10-08 20:01

Title

Indico: Cross-Site-Scripting in minutes editor

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, users who can create content, including speakers who can create minutes, can store crafted HTML in event minutes. When concurrent edits are made to the same minutes, the minute editor conflict UI can execute attacker-controlled script in the viewer's browser in the Indico origin. This issue is fixed in version 3.3.13.

Severity

4.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/pull/7619	x_refsource_MISC
https://github.com/indico/indico/commit/d4c8c7127…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.13	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.13

Show details on NVD website

JSON

To clipboard

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CVE-2026-107396 (GCVE-0-2026-107396)

Vulnerability from cvelistv5 – Published: 2026-10-08 20:00 – Updated: 2026-10-09 15:14

Title

Indico: Cross-Site-Scripting in link fields

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, users who can manage events or create content, including speakers who can upload material, can store crafted javascript URLs in fields that accept custom URLs. A user who follows one of these URLs can execute attacker-controlled script in the user's browser in the Indico origin. This issue is fixed in version 3.3.13.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 20:23 UTC

CWE

CWE-692 - Incomplete Denylist to Cross-Site Scripting

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/pull/7619	x_refsource_MISC
https://github.com/indico/indico/commit/d4c8c7127…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.13	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.13

Show details on NVD website

JSON

To clipboard

{
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        }
      ],
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          "cvssV3_1": {
            "attackComplexity": "LOW",
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              "cweId": "CWE-692",
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          ],
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        },
        {
          "name": "https://github.com/indico/indico/pull/7619",
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          "url": "https://github.com/indico/indico/pull/7619"
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      ],
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        "advisory": "GHSA-c4wc-ggrj-jg9v",
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      },
      "title": "Indico: Cross-Site-Scripting in link fields"
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CVE-2026-107395 (GCVE-0-2026-107395)

Vulnerability from cvelistv5 – Published: 2026-10-08 19:57 – Updated: 2026-10-09 11:49

Title

Indico: Missing access check in legacy session export API

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, an authenticated user can misuse the legacy session export API to retrieve details for a restricted session without access to that session, as long as the containing event is accessible. The missing access check can disclose session metadata such as the title, description, and conveners. This issue is fixed in version 3.3.13.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-09 11:48 UTC

CWE

CWE-862 - Missing Authorization

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/commit/524e8e93e…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.13	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.13

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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CVE-2026-107394 (GCVE-0-2026-107394)

Vulnerability from cvelistv5 – Published: 2026-10-08 19:55 – Updated: 2026-10-09 15:54

Title

Indico: Incomplete Server-Side Request Forgery (SSRF) check

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to 3.3.13, the previous fix for CVE-2026-25738 did not cover an edge case, allowing an event organizer to submit a crafted URL that points to a prohibited local target but is accepted as valid by Indico. The organizer can read data returned by the target through affected Indico features. This issue is fixed in version 3.3.13.

Severity

6.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-09 15:54 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/pull/7573	x_refsource_MISC
https://github.com/indico/indico/commit/44540e70a…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.13	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.13

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
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                "id": "CVE-2026-107394",
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CVE-2026-33046 (GCVE-0-2026-33046)

Vulnerability from cvelistv5 – Published: 2026-03-23 22:45 – Updated: 2026-03-24 13:42

Title

Indico discloses local files resulting in Remote Code Execution through LaTeX injection

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.12, due to vulnerabilities in TeXLive and obscure LaTeX syntax that allowed circumventing Indico's LaTeX sanitizer, it is possible to use specially-crafted LaTeX snippets which can read local files or execute code with the privileges of the user running Indico on the server. Note that if server-side LaTeX rendering is not in use (ie `XELATEX_PATH` was not set in `indico.conf`), this vulnerability does not apply. It is recommended to update to Indico 3.3.12 as soon as possible. It is also strongly recommended to enable the containerized LaTeX renderer (using `podman`), which isolates it from the rest of the system. As a workaround, remove the `XELATEX_PATH` setting from `indico.conf` (or comment it out or set it to `None`) and restart the `indico-uwsgi` and `indico-celery` services to disable LaTeX functionality.

Severity

7.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-24 13:42 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/commit/0adb70f0e…	x_refsource_MISC
https://github.com/indico/indico/commit/1dbb12525…	x_refsource_MISC
https://github.com/indico/indico/commit/5f24d23ce…	x_refsource_MISC
https://github.com/indico/indico/commit/fb169ced7…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.12	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.12

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-33046",
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CVE-2026-28352 (GCVE-0-2026-28352)

Vulnerability from cvelistv5 – Published: 2026-02-27 21:01 – Updated: 2026-03-03 20:29

Title

Indico missing access check in event series management API

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In versions prior to 3.3.11, the API endpoint used to manage event series is missing an access check, allowing unauthenticated/unauthorized access to this endpoint. The impact of this is limited to getting the metadata (title, category chain, start/end date) for events in an existing series, deleting an existing event series, and modifying an existing event series. This vulnerability does NOT allow unauthorized access to events (beyond the basic metadata mentioned above), nor any kind of tampering with user-visible data in events. Version 3.3.11 fixes the issue. As a workaround, use the webserver to restrict access to the series management API endpoint.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-03 20:29 UTC

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/releases/tag/v3.3.11	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.11

Show details on NVD website

JSON

To clipboard

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CVE-2026-25739 (GCVE-0-2026-25739)

Vulnerability from cvelistv5 – Published: 2026-02-19 15:39 – Updated: 2026-02-19 19:49

Title

Indico affected by Cross-Site-Scripting via material uploads

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Versions prior to 3.3.10 are vulnerable to cross-site scripting when uploading certain file types as materials. Users should upgrade to version 3.3.10 to receive a patch. To apply the fix itself updating is sufficient, but to benefit from the strict Content Security Policy (CSP) Indico now applies by default for file downloads, update the webserver config in case one uses nginx with Indico's `STATIC_FILE_METHOD` set to `xaccelredirect`. For further directions, consult the GitHub Security advisory or Indico setup documentation. Some workarounds are available. Use the webserver config to apply a strict CSP for material download endpoints, and/or only let trustworthy users create content (including material uploads, which speakers can typically do as well) on Indico.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-19 19:48 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/releases/tag/v3.3.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2026-25738 (GCVE-0-2026-25738)

Vulnerability from cvelistv5 – Published: 2026-02-19 15:30 – Updated: 2026-02-19 17:34

Title

Indico has Server-Side Request Forgery (SSRF) in multiple places

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Versions prior to 3.3.10 are vulnerable to server-side request forgery. Indico makes outgoing requests to user-provides URLs in various places. This is mostly intentional and part of Indico's functionality but is never intended to let users access "special" targets such as localhost or cloud metadata endpoints. Users should upgrade to version 3.3.10 to receive a patch. Those who do not have IPs that expose sensitive data without authentication (typically because they do not host Indico on AWS) are not affected. Only event organizers can access endpoints where SSRF could be used to actually see the data returned by such a request. For those who trust their event organizers, the risk is also very limited. For additional security, both before and after patching, one may also use the common proxy-related environment variables (in particular `http_proxy` and `https_proxy`) to force outgoing requests to go through a proxy that limits requests in whatever way you deem useful/necessary. These environment variables would need to be set both on the indico-uwsgi and indico-celery services.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-19 17:22 UTC

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/commit/70d341826…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.10	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.10

Show details on NVD website

JSON

To clipboard

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CVE-2025-59035 (GCVE-0-2025-59035)

Vulnerability from cvelistv5 – Published: 2025-09-10 16:03 – Updated: 2025-09-11 14:42

Title

Indico vulnerable to Cross-Site Scripting via LaTeX math code

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, there is a Cross-Site-Scripting vulnerability when rendering LaTeX math code in contribution or abstract descriptions. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, only let trustworthy users create content on Indico. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.

Severity

4.6 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-11 14:26 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/releases/tag/v3.3.8	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.8

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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CVE-2025-59034 (GCVE-0-2025-59034)

Vulnerability from cvelistv5 – Published: 2025-09-10 16:01 – Updated: 2025-09-11 14:42

Title

Indico may disclose unauthorized user details access via legacy API

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Prior to version 3.3.8, a legacy API to retrieve user details could be misused to retrieve profile details of other users without having admin permissions due to a broken access check. Users should to update to Indico 3.3.8 as soon as possible. As a workaround, it is possible to restrict access to the affected API (e.g. in the webserver config).

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-11 14:27 UTC

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/releases/tag/v3.3.8	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.8

Show details on NVD website

JSON

To clipboard

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CVE-2025-53640 (GCVE-0-2025-53640)

Vulnerability from cvelistv5 – Published: 2025-07-14 20:14 – Updated: 2025-07-22 15:29

Title

Indico vulnerable to user enumeration via API endpoint

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Starting in version 2.2 and prior to version 3.3.7, an endpoint used to display details of users listed in certain fields (such as ACLs) could be misused to dump basic user details (such as name, affiliation and email) in bulk. Version 3.3.7 fixes the issue. Owners of instances that allow everyone to create a user account, who wish to truly restrict access to these user details, should consider restricting user search to managers. As a workaround, it is possible to restrict access to the affected endpoints (e.g. in the webserver config), but doing so would break certain form fields which could no longer show the details of the users listed in those fields, so upgrading instead is highly recommended.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-07-15 15:00 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-639 - Authorization Bypass Through User-Controlled Key
CWE-862 - Missing Authorization

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://docs.getindico.io/en/stable/config/settin…	x_refsource_MISC
https://docs.getindico.io/en/stable/installation/…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.7	x_refsource_MISC
https://www.vicarius.io/vsociety/posts/cve2025536…
https://www.vicarius.io/vsociety/posts/cve2025536…

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: >= 2.2, < 3.3.7

Show details on NVD website

JSON

To clipboard

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CVE-2024-45399 (GCVE-0-2024-45399)

Vulnerability from cvelistv5 – Published: 2024-09-04 20:12 – Updated: 2024-09-04 20:17

Title

Indico has a Cross-Site-Scripting during account creation

Summary

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In Indico prior to version 3.3.4, corresponding to Flask-Multipass prior to version 0.5.5, there is a Cross-Site-Scripting vulnerability during account creation when redirecting to the `next` URL. Exploitation requires initiating the account creation process with a maliciously crafted link, and then finalizing the signup process. Because of this, it can only target newly created (and thus unprivileged) Indico users. Indico 3.3.4 upgrades the dependency on Flask-Multipass to version 0.5.5, which fixes the issue. Those who build the Indico package themselves and cannot upgrade can update the `flask-multipass` dependency to `>=0.5.5` which fixes the vulnerability. Otherwise one could configure one's web server to disallow requests containing a query string with a `next` parameter that starts with `javascript:`.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-04 20:17 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1395 - Dependency on Vulnerable Third-Party Component

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/flask-multipass/commit/…	x_refsource_MISC
https://github.com/indico/indico/commit/7dcb57383…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.3.4	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.3.4

Show details on NVD website

JSON

To clipboard

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}

CVE-2023-37901 (GCVE-0-2023-37901)

Vulnerability from cvelistv5 – Published: 2023-07-21 18:14 – Updated: 2024-10-10 18:58

Title

Cross-Site-Scripting via confirmation prompts

Summary

Indico is an open source a general-purpose, web based event management tool. There is a Cross-Site-Scripting vulnerability in confirmation prompts commonly used when deleting content from Indico. Exploitation requires someone with at least submission privileges (such as a speaker) and then someone else to attempt to delete this content. Considering that event organizers may want to delete suspicious-looking content when spotting it, there is a non-negligible risk of such an attack to succeed. The risk of this could be further increased when combined with some some social engineering pointing the victim towards this content. Users need to update to Indico 3.2.6 as soon as possible. See the docs for instructions on how to update. Users who cannot upgrade should only let trustworthy users manage categories, create events or upload materials ("submission" privileges on a contribution/event). This should already be the case in a properly-configured setup when it comes to category/event management. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-10 18:22 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7604 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/indico/indico/security/advisor…	x_refsource_CONFIRM
https://github.com/indico/indico/commit/2ee636d31…	x_refsource_MISC
https://docs.getindico.io/en/stable/installation/…	x_refsource_MISC
https://github.com/indico/indico/releases/tag/v3.2.6	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
indico	indico	Affected: < 3.2.6

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-02T17:23:27.815Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "name": "https://github.com/indico/indico/security/advisories/GHSA-fmqq-25x9-c6hm",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
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            "url": "https://github.com/indico/indico/security/advisories/GHSA-fmqq-25x9-c6hm"
          },
          {
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            "tags": [
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            "url": "https://github.com/indico/indico/commit/2ee636d318653fb1ab193803dafbfe3e371d4130"
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            "url": "https://github.com/indico/indico/releases/tag/v3.2.6"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2023-37901",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
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                  }
                ],
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    "cna": {
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          "value": "Indico is an open source a general-purpose, web based event management tool. There is a Cross-Site-Scripting vulnerability in confirmation prompts commonly used when deleting content from Indico. Exploitation requires someone with at least submission privileges (such as a speaker) and then someone else to attempt to delete this content. Considering that event organizers may want to delete suspicious-looking content when spotting it, there is a non-negligible risk of such an attack to succeed. The risk of this could be further increased when combined with some some social engineering pointing the victim towards this content. Users need to update to Indico 3.2.6 as soon as possible. See the docs for instructions on how to update. Users who cannot upgrade should only let trustworthy users manage categories, create events or upload materials (\"submission\" privileges on a contribution/event). This should already be the case in a properly-configured setup when it comes to category/event management. Note that a conference doing a Call for Abstracts actively invites external speakers (who the organizers may not know and thus cannot fully trust) to submit content, hence the need to update to a a fixed version ASAP in particular when using such workflows."
        }
      ],
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseScore": 5.4,
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            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
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    "dateReserved": "2023-07-10T17:51:29.610Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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