Vulnerability-Lookup

GSD-2022-39270

Vulnerability from gsd - Updated: 2023-12-13 01:19

Details

DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component's settings) are able to inject arbitrary HTML on that topic's page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -> Themes -> Components -> DiscoTOC -> Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component.

Aliases

CVE-2022-39270

Aliases

CVE-2022-39270

JSON

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{
  "GSD": {
    "alias": "CVE-2022-39270",
    "description": "DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component\u0027s settings) are able to inject arbitrary HTML on that topic\u0027s page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -\u003e Themes -\u003e Components -\u003e DiscoTOC -\u003e Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component.",
    "id": "GSD-2022-39270"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-39270"
      ],
      "details": "DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component\u0027s settings) are able to inject arbitrary HTML on that topic\u0027s page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -\u003e Themes -\u003e Components -\u003e DiscoTOC -\u003e Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component.",
      "id": "GSD-2022-39270",
      "modified": "2023-12-13T01:19:20.866535Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-39270",
        "STATE": "PUBLIC",
        "TITLE": "Arbitrary HTML injection in table-of-contents theme component in DiscoTOC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "DiscoTOC",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003c 2.1.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "discourse"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
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            "value": "DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component\u0027s settings) are able to inject arbitrary HTML on that topic\u0027s page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -\u003e Themes -\u003e Components -\u003e DiscoTOC -\u003e Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component."
          }
        ]
      },
      "impact": {
        "cvss": {
          "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"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h",
            "refsource": "CONFIRM",
            "url": "https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h"
          },
          {
            "name": "https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192",
            "refsource": "MISC",
            "url": "https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-m44p-w923-w32h",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:discourse:discotoc:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.1.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
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        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2022-39270"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component\u0027s settings) are able to inject arbitrary HTML on that topic\u0027s page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -\u003e Themes -\u003e Components -\u003e DiscoTOC -\u003e Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-79"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192"
            },
            {
              "name": "https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "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"
          },
          "exploitabilityScore": 2.3,
          "impactScore": 2.7
        }
      },
      "lastModifiedDate": "2022-11-10T04:15Z",
      "publishedDate": "2022-10-06T18:16Z"
    }
  }
}

CVE-2022-39270 (GCVE-0-2022-39270)

Vulnerability from cvelistv5 – Published: 2022-10-06 00:00 – Updated: 2025-04-23 16:52

Title

Arbitrary HTML injection in table-of-contents theme component in DiscoTOC

Summary

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 2025-04-23 13:56 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 7637 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/discourse/DiscoTOC/security/ad…
https://github.com/discourse/DiscoTOC/commit/f80c…

Impacted products

1 product

Vendor	Product	Version
discourse	DiscoTOC	Affected: < 2.1.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:00:43.349Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-39270",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T13:56:49.066432Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T16:52:41.608Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "DiscoTOC",
          "vendor": "discourse",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.1.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "DiscoTOC is a Discourse theme component that generates a table of contents for topics. Users that can create topics in TOC-enabled categories (and have sufficient trust level - configured in component\u0027s settings) are able to inject arbitrary HTML on that topic\u0027s page. The issue has been fixed on the `main` branch. Admins can update the theme component through the admin UI (Customize -\u003e Themes -\u003e Components -\u003e DiscoTOC -\u003e Check for Updates). Alternatively, admins can temporarily disable the DiscoTOC theme component."
        }
      ],
      "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-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-11T00:00:00.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "url": "https://github.com/discourse/DiscoTOC/security/advisories/GHSA-m44p-w923-w32h"
        },
        {
          "url": "https://github.com/discourse/DiscoTOC/commit/f80c215a283cd045d2a371403e6eba88b2911192"
        }
      ],
      "source": {
        "advisory": "GHSA-m44p-w923-w32h",
        "discovery": "UNKNOWN"
      },
      "title": "Arbitrary HTML injection in table-of-contents theme component in DiscoTOC"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-39270",
    "datePublished": "2022-10-06T00:00:00.000Z",
    "dateReserved": "2022-09-02T00:00:00.000Z",
    "dateUpdated": "2025-04-23T16:52:41.608Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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