CVE-2023-41318
low-risk
Published 2023-09-08
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.
Do I need to act?
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0.50% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.1/10
Medium
NETWORK
/ LOW complexity
Affected Products (1)
Matrix-Media-Repo
Affected Vendors
References (8)
Third Party Advisory
https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script
Third Party Advisory
https://developer.mozilla.org/en-US/docs/Web/SVG/Element/script
25
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
2/34 · Minimal
Exposure
5/34 · Minimal