XSS in Turt2live Matrix-Media-Repo
CVE-2023-41318
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (41.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
- Turt2live Matrix-Media-Repo — versions < 1.3.0
Weakness classification (CWE)
References
- github.com/turt2live/matrix-media-repo/security/advisories/GHSA-5crw-6j7v-xc72 (Vendor Advisory)
- github.com/turt2live/matrix-media-repo/commit/77ec2354e8f46d5ef149d1dcaf25f51c0… (Patch)
- github.com/turt2live/matrix-media-repo/commit/bf8abdd7a5371118e280c65a8e0ec2b2e… (Patch)
- developer.mozilla.org/en-US/docs/Web/SVG/Element/script (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-41318?
- CVE-2023-41318 is a medium-severity vulnerability in Turt2live Matrix-Media-Repo, classified under Cross-site Scripting. CVSS score: 4.1/10. Published 2023-09-08.
- How severe is CVE-2023-41318?
- Medium severity. CVSS v3 base score is 4.1 out of 10.