VULNERABILITY INTELLIGENCE
CVE-2026-82291
CVSS score8.1 HIGH
EPSS probability0.55%
CISA KEVNot currently listed
Published2026-08-28
Last modified2026-09-16
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Description
HeyForm before 3.0.0-rc.8 reflects the request Origin header in CORS responses while allowing credentials, enabling cross-origin requests with authentication. Attackers can execute authenticated GraphQL queries from malicious pages visited by logged-in users to access workspaces, projects, forms, submissions, and respondent data, or modify account settings.
Weakness classification
- disclosure@vulncheck.com: CWE-942