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CVE PROGRAM SOURCE RECORD8.9 High

CVE-2026-30934

FileBrowser Quantum: Stored XSS in public share page via unsanitized share metadata (text/template misuse)

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

gtsteffaniak filebrowser

  • >= 1.3.0-beta, < 1.3.1-betaaffected
  • < 1.2.2-stableaffected

References