CVE-2026-25889
MEDIUMfilebrowser < 2.57.1 - Authenticated Password Change Bypass via Case Sensitivity Flaw
Title source: llmDescription
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.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-hxw8-4h9j-hq2r
Patch x_refsource_misc
https://github.com/filebrowser/filebrowser/commit/ff2f00498cff151e2fb1f5f0b16963bf33c3d6d4
Release Notes x_refsource_misc
https://github.com/filebrowser/filebrowser/releases/tag/v2.57.1
Scores
CVSS v3
5.4
EPSS
0.0032
EPSS Percentile
24.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-178
Status
published
Products (2)
filebrowser/filebrowser
< 2.57.1
filebrowser/filebrowser
0 - 2.57.1Go
Published
Feb 09, 2026
Tracked Since
Feb 18, 2026