A path traversal vulnerability exists in the XTTS server included in the lollms package, version v9.6. This vulnerability arises from the ability to perform an unauthenticated root folder settings change. Although the read file endpoint is protected against path traversals, this protection can be bypassed by changing the root folder to '/'. This allows attackers to read arbitrary files on the system. Additionally, the output folders can be changed to write arbitrary audio files to any location on the system.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.