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.
History

Wed, 11 Nov 2026 19:15:00 +0000

Type Values Removed Values Added
First Time appeared Cozmoslabs
Cozmoslabs user Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor
Wordpress-extensions
Wordpress-extensions user Profile Builder
Vendors & Products Cozmoslabs
Cozmoslabs user Profile Builder – Beautiful User Registration Forms, User Profiles & User Role Editor
Wordpress-extensions
Wordpress-extensions user Profile Builder

Fri, 16 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 16 Oct 2026 05:45:00 +0000

Type Values Removed Values Added
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 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.
Title User Profile Builder <= 4.0.3 - Unauthenticated Stored Cross-Site Scripting via First Name Field
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-10-16T05:30:28.153Z

Updated: 2026-10-16T14:39:03.586Z

Reserved: 2026-09-25T13:40:41.077Z

Link: CVE-2026-100186

cve-icon Vulnrichment

Updated: 2026-10-16T14:34:14.152Z

cve-icon NVD

Status : Deferred

Published: 2026-10-16T06:17:02.317

Modified: 2026-10-16T15:16:58.640

Link: CVE-2026-100186

cve-icon Redhat

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