Categories
CVE-2026-30934

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

Summary

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

Original description

The description as published by the source.

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/ 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.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

References

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