Description
FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-beta and 1.2.2-stable, Stored XSS is possible via share metadata fields (e.g., title, description) that are rendered into HTML for /public/share/<hash> without context-aware escaping. The server uses text/template instead of html/template, allowing injected scripts to execute when victims visit the share URL. This vulnerability is fixed in 1.3.1-beta and 1.2.2-stable.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-r633-fcgp-m532
Release Notes x_refsource_misc
https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.2.2-stable
Release Notes x_refsource_misc
https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.1-beta
Scores
CVSS v3
8.9
EPSS
0.0035
EPSS Percentile
26.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-79
Status
published
Products (4)
filebrowser/filebrowser
1.2.1 stable
filebrowser/filebrowser
1.3.0 beta
filebrowser/filebrowser
< 1.2.9
gtsteffaniak/filebrowser
0 - 0.0.0-20260307130210-09713b32a5f6Go
Published
Mar 10, 2026
Tracked Since
Mar 11, 2026