CVE-2026-35198

Published: Jul 20, 2026Modified: Jul 20, 2026

9.0

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Exploitability: 2.3 / Impact: 6.0

Source: security-advisories@github.com (Secondary)

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 CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (3)

https://github.com/heyform/heyform/commit/cc97d27a57ae400fec23abf5dcf6f9533c3b5db3

Source: security-advisories@github.com

https://github.com/heyform/heyform/security/advisories/GHSA-chmm-jqpm-3pwx

Source: security-advisories@github.com

https://github.com/heyform/heyform/security/advisories/GHSA-chmm-jqpm-3pwx

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.