CVE-2026-25890

HIGH EPSS 36.6%
Published Feb 9, 20264mo ago · Modified Jun 17, 20261w ago
8.1 CVSS 3.1
High
Find Similar
Published Feb 9, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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, an authenticated user can bypass the application's "Disallow" file path rules by modifying the request URL. By adding multiple slashes (e.g., //private/) to the path, the authorization check fails to match the rule, while the underlying filesystem resolves the path correctly, granting unauthorized access to restricted files. This vulnerability is fixed in 2.57.1.

CVSS Details

Base Score
8.1
Exploitability
2.8
Impact
5.2
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
36.6% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-706
CWE-863 Incorrect Authorization Authorization

Affected Products 1

VendorProductVersionRange
filebrowserfilebrowser* <2.57.1

References 3

  • github.com https://github.com/filebrowser/filebrowser/commit/489af403a19057f6b6b4b1dc0e48cbb26a202ef9
    Patch
  • github.com https://github.com/filebrowser/filebrowser/releases/tag/v2.57.1
    ProductRelease Notes
  • github.com https://github.com/filebrowser/filebrowser/security/advisories/GHSA-4mh3-h929-w968
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/filebrowser/filebrowser/commit/489af403a19057f6b6b4b1dc0e48cbb26a202ef9
    Patch