Vulnerability · Published Jul 15, 2025 · Assigned by GitHub_M
CVE-2025-53826FileBrowser Has Insecure JWT Handling Which Allows Session Replay Attacks after Logout
High 7.7
In plain English
A high-severity security flaw in filebrowser from filebrowser. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 46% of all known vulnerabilities).
Severity (CVSS 4.0)7.7High
Exploit odds (30 days)0.6%top 53.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/filebrowser/filebrowser | no fix listed | GHSA-7xwp-2cpp-p8r7 |
| Go | github.com/filebrowser/filebrowser | no fix listed | GO-2025-3812 |
| Go | github.com/filebrowser/filebrowser/v2 | no fix listed | GHSA-7xwp-2cpp-p8r7 |
| Go | github.com/filebrowser/filebrowser/v2 | no fix listed | GO-2025-3812 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| filebrowser | filebrowser | = 2.39.0 |
Weakness: CWE-305, CWE-385, CWE-613 · 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
References
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-7xwp-2cpp-p8r7 x_refsource_CONFIRM
- https://github.com/filebrowser/filebrowser/issues/5216 x_refsource_MISC