CVE-2025-53826: filebrowser — Exploit & Fix

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. In version 2.39.0, File Browser’s authentication system issues long-lived JWT tokens that remain valid even after the user logs out. As of time of publication, no known patches exist.

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-305 CWE-305

CWE-385 CWE-385

CWE-613 CWE-613

Affected Products

Vendor	Product	Versions
filebrowser	filebrowser	All

References

Advisories & Patches

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7 https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7

Exploits

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7 https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7

Other References

https://github.com/filebrowser/filebrowser/issues/5216

Frequently Asked Questions

What is CVE-2025-53826? +

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename, and edit files. In version 2.39.0, File Browser’s authentication system issues long-lived JWT tokens that remain valid even after the user logs out. As of time of publication, no known patches exist. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-53826? +

CVE-2025-53826 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2025-53826? +

CVE-2025-53826 affects products from filebrowser, specifically: filebrowser. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-53826? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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