CVEvulnerability
CVE-2026-35198
9.0 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2026-07-20
- Last modified
- 2026-08-21
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-79
Description
HeyForm is an open-source form builder. Prior to version 3.0.0-rc.7, a stored cross-site scripting (XSS) vulnerability in the form builder allows a low-privileged team member to inject malicious JavaScript that executes when a team owner views the form, leading to complete account takeover through privilege escalation. Version 3.0.0-rc.7 contains a patch for the issue.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/heyform/heyform/commit/cc97d27a57ae400fec23abf5dcf6f9533c3b5db3 github.com
- https://github.com/heyform/heyform/security/advisories/GHSA-chmm-jqpm-3pwx github.com
- https://vokecyber.com/research/cve-2026-35198-heyform-stored-xss vokecyber.com
- https://github.com/heyform/heyform/security/advisories/GHSA-chmm-jqpm-3pwx github.com