CVE-2023-48702 Information

Description

Jellyfin is a system for managing and streaming media. Prior to version 10.8.13 the /System/MediaEncoder/Path endpoint executes an arbitrary file using ProcessStartInfo via the ValidateVersion function. A malicious administrator can setup a network share and supply a UNC path to /System/MediaEncoder/Path which points to an executable on the network share causing Jellyfin server to run the executable in the local context. The endpoint was removed in version 10.8.13.

Reference

https://securitylab.github.com/advisories/GHSL-2023-028_jellyfin/ https://github.com/jellyfin/jellyfin/security/advisories/GHSA-rr9h-w522-cvmr https://github.com/jellyfin/jellyfin/commit/83d2c69516471e2db72d9273c6a04247d0f37c86