---
id: CVE-2026-6431
title: >-
  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 …
summary: >-
  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 …
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: cozmoslabs
product: >-
  User Profile Builder – Beautiful User Registration Forms, User Profiles & User
  Role Editor
affected:
  - >-
    user_profile_builder_beautiful_user_registration_forms_user_profiles_user_role_editor
    <= 3.15.7
published: '2026-09-07'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T15:17:08.230'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-6431'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/profile-builder/tags/3.15.6/features/email-confirmation/class-email-confirmation.php#L95
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/profile-builder/tags/3.15.6/front-end/class-formbuilder.php#L743
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/profile-builder/trunk/features/email-confirmation/class-email-confirmation.php#L95
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/profile-builder/trunk/front-end/class-formbuilder.php#L743
    label: security@wordfence.com
  - url: 'https://plugins.trac.wordpress.org/changeset/3511465'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/99e6cc7b-7e65-4b8d-a927-1329ed6c1954?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-09T14:27:34.685334Z'
epss: 0.00241
epssPercentile: 0.15541
ingestedAt: '2026-09-08T15:33:26.977Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.