HIGH 7.2 NVD
CVE-2026-93766
The Happyforms Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'happyforms_client_referer' parameter in all versions up to, and in
The Happyforms Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'happyforms_client_referer' parameter in all versions up to, and including, 1.38.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
References
- https://happyforms.io/whats-new/
- https://wordpress.org/plugins/happyforms-upgrade/#developers
- https://www.wordfence.com/threat-intel/vulnerabilities/id/71fac3d5-40d5-41d5-b756-2f1e9417
This high severity vulnerability with a CVSS score of 7.2 was published on 2026-11-07 via NVD.
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