CVE-2025-52902

File Browser has Stored Cross-Site Scripting vulnerability

File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. The Markdown preview function of File Browser prior to v2.33.7 is vulnerable to Stored Cross-Site-Scripting (XSS). Any JavaScript code that is part of a Markdown file uploaded by a user will be executed by the browser. Version 2.33.7 contains a fix for the issue.

Affected

filebrowser

CVSS v3.1 NVD

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 GITHUB

7.6 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

EPSS

0.33% chance of exploitation in the next 30 days, 24th percentile

Published

2025-06-26

Proof-of-concept exploits (1)

• filebrowser/filebrowser/security/advisories/GHSA-4wx8-5gm2-2j97

Security advisories

• advisories/GHSA-4wx8-5gm2-2j97
• filebrowser/filebrowser/commit/f19943a42e8e092e811dffbe9f4623dac36f1f0d

References

• CVE Record
• NVD entry