In Jellyfin before 10.8, the /users endpoint has incorrect access control for admin functionality. This lack of access control can be leveraged to performe a cross site scripting attack.
References
- https://nvd.nist.gov/vuln/detail/CVE-2022-35909
- https://github.com/jellyfin/jellyfin/pull/7569/files
- https://docs.google.com/document/d/1cBXQrokCvWxKET4BKi3ZLtVp5gst6-MrGPgMKpfXw8Y/edit
- https://medium.com/stolabs/cve-2022-35909-cve-2022-35910-incorrect-access-control-and-xss-stored-to-jellyfin-967359c91058
- https://github.com/advisories/GHSA-qwp3-5fw3-5wgv