Vulnerability · Published Sep 8, 2023 · Assigned by GitHub_M
CVE-2023-41318Unsafe media served inline on download endpoints in matrix-media-repo
Medium 4.1
In plain English
A medium-severity cross-site scripting in matrix-media-repo from turt2live. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/turt2live/matrix-media-repo | 1.3.0 | GHSA-5crw-6j7v-xc72 |
| Go | github.com/turt2live/matrix-media-repo | 1.3.0 | GO-2023-2053 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| turt2live | matrix-media-repo | < 1.3.0 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
References
- https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72 x_refsource_CONFIRM
- https://github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c04149137 x_refsource_MISC
- https://github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e9bdaf59 x_refsource_MISC
- https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script x_refsource_MISC