Vulnerability-Lookup

CVE-2023-41318 (GCVE-0-2023-41318)

Vulnerability from cvelistv5 – Published: 2023-09-08 19:51 – Updated: 2024-09-26 14:03

Title

Unsafe media served inline on download endpoints in matrix-media-repo

Summary

matrix-media-repo is a highly customizable multi-domain media repository for the Matrix chat ecosystem. In affected versions an attacker could upload a malicious piece of media to the media repo, which would then be served with `Content-Disposition: inline` upon download. This vulnerability could be leveraged to execute scripts embedded in SVG content. Commits `77ec235` and `bf8abdd` fix the issue and are included in the 1.3.0 release. Operators should upgrade to v1.3.0 as soon as possible. Operators unable to upgrade should override the `Content-Disposition` header returned by matrix-media-repo as a workaround.

Severity

4.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-26 13:57 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 7814 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/turt2live/matrix-media-repo/se…	x_refsource_CONFIRM
https://github.com/turt2live/matrix-media-repo/co…	x_refsource_MISC
https://github.com/turt2live/matrix-media-repo/co…	x_refsource_MISC
https://developer.mozilla.org/en-US/docs/Web/SVG/…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
turt2live	matrix-media-repo	Affected: < 1.3.0	guessed

Show details on NVD website

JSON

To clipboard

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}

FKIE_CVE-2023-41318

Vulnerability from fkie_nvd - Published: 2023-09-08 20:15 - Updated: 2026-06-17 06:21

Severity

4.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script	Third Party Advisory
security-advisories@github.com	https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137	Patch
security-advisories@github.com	https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59	Patch
security-advisories@github.com	https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72	Vendor Advisory

Impacted products

	Vendor	Product	Version
	turt2live	matrix-media-repo	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "matrix-media-repo",
          "vendor": "turt2live",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.3.0"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:turt2live:matrix-media-repo:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7900287F-C40A-4E34-A327-C0F6A014AB60",
              "versionEndExcluding": "1.3.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "matrix-media-repo is a highly customizable multi-domain media repository for the Matrix chat ecosystem. In affected versions an attacker could upload a malicious piece of media to the media repo, which would then be served with `Content-Disposition: inline` upon download. This vulnerability could be leveraged to execute scripts embedded in SVG content. Commits `77ec235` and `bf8abdd` fix the issue and are included in the 1.3.0 release. Operators should upgrade to v1.3.0 as soon as possible. Operators unable to upgrade should override the `Content-Disposition` header returned by matrix-media-repo as a workaround."
    },
    {
      "lang": "es",
      "value": "Matrix-media-repo es un repositorio de medios multidominio altamente personalizable para el ecosistema de chat de Matrix. En las versiones afectadas, un atacante podr\u00eda cargar un contenido malicioso en el repositorio de contenidos, que luego se entregar\u00eda con \"Content-Disposition: inline\" al descargarlo. Esta vulnerabilidad podr\u00eda aprovecharse para ejecutar scripts incrustados en contenido SVG. Los commits `77ec235` y `bf8abdd` solucionan el problema y se incluyen en la versi\u00f3n 1.3.0. Los operadores deben actualizar a la versi\u00f3n 1.3.0 lo antes posible. Los operadores que no puedan actualizar deben anular el encabezado \"Content-Disposition\" devuelto por Matrix-media-repo como workaround."
    }
  ],
  "id": "CVE-2023-41318",
  "lastModified": "2026-06-17T06:21:44.677",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 1.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "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,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-41318",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-26T13:57:19.688359Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-09-08T20:15:14.693",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-5CRW-6J7V-XC72

Vulnerability from github – Published: 2023-09-08 13:18 – Updated: 2023-09-08 13:18

Summary

matrix-media-repo: Unsafe media served inline on download endpoints

Details

Impact

A malicious user can upload an SVG image containing JavaScript to their server. When matrix-media-repo is asked to serve that media via the /_matrix/media/(r0|v3)/download endpoint, it would be served with a Content-Disposition of inline. This can allow JavaScript to run in the browser if a client links to the /download endpoint directly.

Server operators which do not share a domain between matrix-media-repo and other services are not affected, but are encouraged to upgrade regardless.

Patches

https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137 and https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59 fix the issue. Operators should upgrade to v1.3.0 as soon as possible.

Workarounds

The Content-Disposition header can be overridden by the reverse proxy in front of matrix-media-repo to always use attachment, defeating this issue at the cost of "worse" user experience when clicking download links.

References

https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script

Severity

4.1 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/turt2live/matrix-media-repo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-41318"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-09-08T13:18:23Z",
    "nvd_published_at": "2023-09-08T20:15:14Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nA malicious user can upload an SVG image containing JavaScript to their server. When matrix-media-repo is asked to serve that media via the `/_matrix/media/(r0|v3)/download` endpoint, it would be served with a `Content-Disposition` of `inline`. This can allow JavaScript to run in the browser if a client links to the `/download` endpoint directly.\n\nServer operators which do not share a domain between matrix-media-repo and other services are not affected, but are encouraged to upgrade regardless.\n\n### Patches\nhttps://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137 and https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59 fix the issue. Operators should upgrade to v1.3.0 as soon as possible.\n\n### Workarounds\nThe `Content-Disposition` header can be overridden by the reverse proxy in front of matrix-media-repo to always use `attachment`, defeating this issue at the cost of \"worse\" user experience when clicking download links.\n\n### References\nhttps://developer.mozilla.org/en-US/docs/Web/SVG/Element/script\n\n",
  "id": "GHSA-5crw-6j7v-xc72",
  "modified": "2023-09-08T13:18:23Z",
  "published": "2023-09-08T13:18:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41318"
    },
    {
      "type": "WEB",
      "url": "https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137"
    },
    {
      "type": "WEB",
      "url": "https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59"
    },
    {
      "type": "WEB",
      "url": "https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/turt2live/matrix-media-repo"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "matrix-media-repo: Unsafe media served inline on download endpoints"
}

GSD-2023-41318

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-41318

Aliases

CVE-2023-41318

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-41318",
    "id": "GSD-2023-41318"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-41318"
      ],
      "details": "matrix-media-repo is a highly customizable multi-domain media repository for the Matrix chat ecosystem. In affected versions an attacker could upload a malicious piece of media to the media repo, which would then be served with `Content-Disposition: inline` upon download. This vulnerability could be leveraged to execute scripts embedded in SVG content. Commits `77ec235` and `bf8abdd` fix the issue and are included in the 1.3.0 release. Operators should upgrade to v1.3.0 as soon as possible. Operators unable to upgrade should override the `Content-Disposition` header returned by matrix-media-repo as a workaround.",
      "id": "GSD-2023-41318",
      "modified": "2023-12-13T01:20:45.130373Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2023-41318",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "matrix-media-repo",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 1.3.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "turt2live"
            }
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          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.1,
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            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N",
            "version": "3.1"
          }
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      },
      "problemtype": {
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                "cweId": "CWE-79",
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                "value": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72",
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          },
          {
            "name": "https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script",
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            "url": "https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script"
          }
        ]
      },
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      }
    },
    "nvd.nist.gov": {
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        "nodes": [
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            "children": [],
            "cpe_match": [
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            }
          ]
        },
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        "references": {
          "reference_data": [
            {
              "name": "https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72",
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              ],
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            {
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              ],
              "url": "https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script"
            },
            {
              "name": "https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59",
              "refsource": "MISC",
              "tags": [
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              "refsource": "MISC",
              "tags": [
                "Patch"
              ],
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            }
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
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            "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": "2023-09-13T02:17Z",
      "publishedDate": "2023-09-08T20:15Z"
    }
  }
}

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

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.

Action not permitted

CVE-2023-41318 (GCVE-0-2023-41318)

FKIE_CVE-2023-41318

GHSA-5CRW-6J7V-XC72

Impact

Patches

Workarounds

References

GSD-2023-41318

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour