{"id":"CVE-2023-41318","aliases":["GHSA-5crw-6j7v-xc72","GO-2023-2053"],"url":"https://o3.security/vulnerability/CVE-2023-41318","summary":"Unsafe media served inline on download endpoints in matrix-media-repo","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.","published":"2023-09-08T19:51:20.011Z","modified":"2026-08-12T03:51:19.569588631Z","cvss":{"score":4.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/turt2live/matrix-media-repo","fixedVersion":"1.3.0"}],"fix":{"url":"https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137","label":"turt2live/matrix-media-repo@77ec235"},"references":[{"type":"WEB","url":"https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/41xxx/CVE-2023-41318.json"},{"type":"ADVISORY","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":"FIX","url":"https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137"},{"type":"FIX","url":"https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:19.569588631Z"}}