CVE-2026-100186

The User Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via First Name Field in all versions up to, and including, 4.0.3 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. This vulnerability is only exploitable when the Email Confirmation feature is enabled in Profile Builder.

• CWE-79

• https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/email-confirmation/class-email-confirmation.php#L100
• https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/email-confirmation/class-email-confirmation.php#L99
• https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/features/email-confirmation/email-confirmation.php#L470
• https://plugins.trac.wordpress.org/browser/profile-builder/tags/4.0.3/front-end/default-fields/first-name/first-name.php#L56
• https://plugins.trac.wordpress.org/changeset/3741133/profile-builder
• https://plugins.trac.wordpress.org/changeset/3741133/profile-builder/trunk/features/email-confirmation/class-email-confirmation.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/f3f2ecdb-bbd0-4834-b731-88724ca0dfd7?source=cve

Published

Oct 16, 2026

Last Modified

Oct 16, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-100179The Calculated Fields Form – AI Form Builder for WordPress –…6.1
• CVE-2026-10018Integer overflow in ANGLE in Google Chrome prior to 148.0.77…6.5
• CVE-2026-100180The Jeg Kit for Elementor – Powerful Addons for Elementor, W…5.4
• CVE-2026-100182The Download Monitor plugin for WordPress is vulnerable to S…7.2
• CVE-2026-100184The Calculated Fields Form – AI Form Builder for WordPress –…4.7
• CVE-2026-100185The Directorist: AI-Powered Business Directory, Listings & C…6.4
• CVE-2026-100187The Onion module in AIL Framework contained a performance sh…6.9
• CVE-2026-10019Integer overflow in ANGLE in Google Chrome prior to 148.0.77…8.8
• CVE-2026-100190The AIL Framework crawler splash domain page (showDomain.htm…6.3
• CVE-2026-100192X-SpringBoot through 6.0 exposes appKey and appSecret creden…6.5
• CVE-2026-100193The Tutor LMS – eLearning and online course solution plugin …4.7
• CVE-2026-100196The LazyLoad Plugin – Lazy Load Images, Videos, and Iframes …7.2