EXPOSURES › CVE-2026-72839

▸ RECOMMENDED ACTION  Critical severity — schedule patching of the affected products.

filebrowser through 2.63.16 fails to properly restrict scope and permissions when self-signup is enabled with default CreateUserDir setting. Unauthenticated attackers can register accounts that inherit the server root scope with full create, modify, delete, rename, share, and download permissions, allowing unrestricted access to all files.