CVE-2025-53826
FileBrowser Has Insecure JWT Handling Which Allows Session Replay Attacks after Logout
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.
INFO
Published Date :
July 15, 2025, 6:15 p.m.
Last Modified :
Aug. 5, 2025, 6:26 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Implement robust JWT token invalidation on logout.
- Review and strengthen session management mechanisms.
- Consider shorter token expiration times.
- Monitor for unauthorized access attempts.
Public PoC/Exploit Available at Github
CVE-2025-53826 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-53826.
| URL | Resource |
|---|---|
| https://github.com/filebrowser/filebrowser/issues/5216 | Issue Tracking |
| https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7 | Exploit Vendor Advisory |
| https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7 | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-53826 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-53826
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-53826 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-53826 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:filebrowser:filebrowser:2.39.0:*:*:*:*:*:*:* Added Reference Type GitHub, Inc.: https://github.com/filebrowser/filebrowser/issues/5216 Types: Issue Tracking Added Reference Type CISA-ADP: https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7 Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7 Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 15, 2025
Action Type Old Value New Value Added Reference https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7 -
New CVE Received by [email protected]
Jul. 15, 2025
Action Type Old Value New Value 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-613 Added CWE CWE-305 Added CWE CWE-385 Added Reference https://github.com/filebrowser/filebrowser/issues/5216 Added Reference https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7