Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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 …