CVE-2025-53826

FileBrowser Has Insecure JWT Handling Which Allows Session Replay Attacks after Logout

Published Jul 15, 2025 CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
EUVD EUVD EUVD-2025-21540 File Browser’s insecure JWT handling can lead to session replay attacks after logout
Github GHSA Github GHSA GHSA-7xwp-2cpp-p8r7 File Browser’s insecure JWT handling can lead to session replay attacks after logout
History
Type Values Removed Values Added
CPEs cpe:2.3:a:filebrowser:filebrowser:2.39.0:*:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00062}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title FileBrowser Has Insecure JWT Handling Which Allows Session Replay Attacks after Logout
Weaknesses CWE-305
CWE-385
CWE-613
References
Metrics cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 15, 2025, 6:37 PM
Reserved
Jul 9, 2025, 2:14 PM
Status
Analyzed
Published
Jul 15, 2025, 6:15 PM
Modified
Jun 17, 2026, 9:38 AM