High severity7.2NVD Advisory· Published Sep 7, 2026· Updated Sep 9, 2026
CVE-2026-6431
CVE-2026-6431
Description
The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'Biographical Info' meta field parameter in all versions up to, and including, 3.15.7 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=3.15.7
Patches
Vulnerability mechanics
References
6- plugins.trac.wordpress.org/browser/profile-builder/tags/3.15.6/features/email-confirmation/class-email-confirmation.phpnvd
- plugins.trac.wordpress.org/browser/profile-builder/tags/3.15.6/front-end/class-formbuilder.phpnvd
- plugins.trac.wordpress.org/browser/profile-builder/trunk/features/email-confirmation/class-email-confirmation.phpnvd
- plugins.trac.wordpress.org/browser/profile-builder/trunk/front-end/class-formbuilder.phpnvd
- plugins.trac.wordpress.org/changeset/3511465nvd
- www.wordfence.com/threat-intel/vulnerabilities/id/99e6cc7b-7e65-4b8d-a927-1329ed6c1954nvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (August 31, 2026 to September 6, 2026)Wordfence Blog · Sep 10, 2026