CVE-2026-105090
— UNSCOREDpublic exploit availablePublished 2026-10-03 · Updated 2026-10-06
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD 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.
Weaknesses
CWE-863
Public exploit & PoC references
All references
- https://github.com/formbricks/formbricks/pull/9432
- https://github.com/formbricks/formbricks/releases/tag/5.4.4
- https://github.com/formbricks/formbricks/releases/tag/6.0.1
- https://www.sec4check.pl/blog/posts/cve-formbricks-broken-access-control-stored-xss-custom-head-scripts.html
- https://www.sec4check.pl/blog/posts/cve-formbricks-broken-access-control-stored-xss-custom-head-scripts.html
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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- MEDIUMCVE-2026-100276
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