CVE-2025-52901
The JSON Web Token (JWT) which is used as a session identifier will get leaked to anyone having access to the URLs accessed by the user.
Does this matter?
Lower severity and a low EPSS score (0.53%). Track it; it rarely justifies an emergency change on its own.
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 version 2.33.9, access tokens are used as GET parameters. The JSON Web Token (JWT) which is used as a session identifier will get leaked to anyone having access to the URLs accessed by the user. This will give an attacker full access to a user's account and, in consequence, to all sensitive files the user has access to. This issue has been patched in version 2.33.9.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.53% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-598
- Affected
- filebrowser/filebrowser
- Source
- security-advisories@github.com
References
- https://github.com/filebrowser/filebrowser/commit/d5b39a14fd3fc0d1c364116b41289484df7c27b2Patch
- https://github.com/filebrowser/filebrowser/releases/tag/v2.33.9Release Notes
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-rmwh-g367-mj4xExploit, Vendor Advisory
- https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250327-03_Filebrowser_Sensitive_Data_Transferred_In_URL
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.