CVE-2026-25889
Undergoing Analysis
Undergoing Analysis - In Progress
Case-Sensitivity Bypass in File Browser Password Validation Enables Account Takeover
Publication date: 2026-02-09
Last updated on: 2026-02-23
Assigner: GitHub, Inc.
Description
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| filebrowser | filebrowser | to 2.57.1 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-178 | The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results. |