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CVE-2026-30934

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CVE-2026-30934

Published: Mar 10, 2026

Modified: Mar 10, 2026

PUBLISHED

CVSS v3.1

8.9

HIGH

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.

VendorProductVersions

gtsteffaniak

filebrowser

affected
>= 1.3.0-beta, < 1.3.1-beta
affected
< 1.2.2-stable

Weaknesses (CWE)

CWE-79

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

Low

References

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