{"id":"CVE-2026-30934","aliases":["GHSA-r633-fcgp-m532","GO-2026-4660"],"url":"https://o3.security/vulnerability/CVE-2026-30934","summary":"FileBrowser Quantum: Stored XSS in public share page via unsanitized share metadata (text/template misuse)","details":"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.","published":"2026-03-10T16:12:23.434Z","modified":"2026-08-07T11:50:52.257152778Z","cvss":{"score":8.9,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/gtsteffaniak/filebrowser","fixedVersion":"0.0.0-20260307130210-09713b32a5f6"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.2.2-stable"},{"type":"WEB","url":"https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.1-beta"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30934.json"},{"type":"ADVISORY","url":"https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-r633-fcgp-m532"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30934"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:50:52.257152778Z"}}