In Jellyfin before 10.8, stored XSS allows theft of an admin access token.
https://github.com/jellyfin/jellyfin/pull/7569/files
https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-38782
https://docs.google.com/document/d/1cBXQrokCvWxKET4BKi3ZLtVp5gst6-MrGPgMKpfXw8Y/edit