{"id":"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/\u003chash\u003e 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.","aliases":["GHSA-r633-fcgp-m532","GO-2026-4660"],"modified":"2026-04-10T05:41:59.875004Z","published":"2026-03-10T16:12:23.434Z","related":["SUSE-SU-2026:1042-1"],"database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/30xxx/CVE-2026-30934.json","cwe_ids":["CWE-79"]},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/filebrowser/filebrowser","events":[{"introduced":"0"},{"last_affected":"6b8a65382f0787968eb2275de4f574a68e13e0b4"},{"introduced":"0"},{"last_affected":"4c8b1188484f994a0d287435150cf3d58f3dc0f3"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"1.2.9"},{"introduced":"0"},{"last_affected":"1.2.1-stable"}]}}],"versions":["v1.0.0","v1.0.1","v1.0.2","v1.1.0","v1.1.1","v1.2.0","v1.2.1","v1.2.2","v1.2.3","v1.2.4","v1.2.5","v1.2.6","v1.2.7","v1.2.8","v1.2.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30934.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/gtsteffaniak/filebrowser","events":[{"introduced":"e4907225a1ac0be759245417ac4d5289539f2cea"},{"fixed":"9d6e429a38be5f4d95476e2d272d6cdff7bcb784"}],"database_specific":{"versions":[{"introduced":"1.3.0-beta"},{"fixed":"1.3.1-beta"}]}},{"type":"GIT","repo":"https://github.com/gtsteffaniak/filebrowser","events":[{"introduced":"0"},{"fixed":"09713b32a5f6e369a5197319749a12b8e7fd5f2b"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.2.2-stable"}]}}],"versions":["v0.3.4","v0.3.6-beta","v0.3.7-beta","v0.4.0-beta","v0.4.1-beta","v0.4.2-beta","v0.5.0-beta","v0.5.1-beta","v0.5.2-beta","v0.7.6-beta","v1.0.1-stable","v1.2.1-stable"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-30934.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L"}]}