CVE-2026-30934

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.

CVSS v3 8.9 HIGH

8.9^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.2.2-stable	Release Notes
https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.1-beta	Release Notes
https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-r633-fcgp-m532	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:filebrowser:filebrowser::::::::
	cpe:2.3:a:filebrowser:filebrowser:1.2.1:stable::::::
	cpe:2.3:a:filebrowser:filebrowser:1.3.0:beta::::::

History

No history.

Information

Published : 2026-03-10 18:18

Updated : 2026-03-18 16:52

NVD link : CVE-2026-30934

Mitre link : CVE-2026-30934

CVE.ORG link : CVE-2026-30934

JSON object : View

Products Affected

filebrowser

filebrowser

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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