{"id":"CVE-2026-105090","revision":null,"records":[{"revision":"b91de55e5c5a467d9de0759fb5ded275","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-105090","aliases":[],"title":"Formbricks before 5.4.4 and 6 before 6.0.1 allows stored XSS. The survey-level Custom Head Scripts feature did not enforce the documented Manage permission boundary. A workspace member holding only readWrite permission could configure Custo…","description":"Formbricks before 5.4.4 and 6 before 6.0.1 allows stored XSS. The survey-level Custom Head Scripts feature did not enforce the documented Manage permission boundary. A workspace member holding only readWrite permission could configure Custom Head Scripts on a survey, an operation the documentation restricts to the Manage role. Because the configured scripts execute in the authenticated browser session of any user who opens the affected survey, a lower-privileged member can run arbitrary JavaScript (stored cross-site scripting) in the session of higher-privileged users. Fixed versions require Manage access to modify survey Custom Head Scripts.","state":0,"publishedAt":"2026-10-03T01:59:10.911+00:00","modifiedAt":"2026-10-05T17:05:12.057+00:00","affected":[{"ecosystem":"https://github.com/formbricks/formbricks","name":"Formbricks","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"collectionURL\": \"https://github.com/formbricks/formbricks\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"Formbricks\",\n                    \"vendor\": \"Formbricks\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"5.4.4\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"lessThan\": \"6.0.1\",\n                            \"status\": \"affected\",\n                            \"version\": \"6.0.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","score":5.1,"severity":"MEDIUM"}],"references":["https://github.com/formbricks/formbricks/releases/tag/6.0.1","https://github.com/formbricks/formbricks/releases/tag/5.4.4","https://github.com/formbricks/formbricks/pull/9432","https://www.sec4check.pl/blog/posts/cve-formbricks-broken-access-control-stored-xss-custom-head-scripts.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105090","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-105090","identifiers":["CVE-2026-105090"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-11-11T16:59:37.9488152+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T16:59:37.9488152+00:00","lastSuccessAt":"2026-11-11T16:59:38.1301472+00:00","error":null,"lastVerifiedAt":"2026-11-11T16:59:38.1301474+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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