CVE-2026-25889
File Browser has an Authentication Bypass in User Password Update
MEDIUM 5.4EPSS 0.4%
File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Prior to 2.57.1, a case-sensitivity flaw in the password validation logic allows any authenticated user to change their password (or an admin to change any user's password) without providing the current password. By using Title Case field name "Password" instead of lowercase "password" in the API request, the current_password verification is completely bypassed. This enables account takeover if an attacker obtains a valid JWT token through XSS, session hijacking, or other means. This vulnerability is fixed in 2.57.1.
- Affected
- filebrowser
- CVSS v3.1 GITHUB
- 5.4 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - EPSS
- 0.45% chance of exploitation in the next 30 days, 38th percentile
- Published
- 2026-02-09
- Updated
- 2026-02-10
Proof-of-concept exploits (1)
Security advisories
- filebrowser/filebrowser/security/advisories/GHSA-hxw8-4h9j-hq2r
- filebrowser/filebrowser/commit/ff2f00498cff151e2fb1f5f0b16963bf33c3d6d4