---
id: CVE-2026-96270
title: >-
  The Ultimate Member – User Profile, Registration, Login, Member Directory,
  Content Restriction & Membership Plugin plugin for WordPress is vulnerable to
  Stored Cross-Site Scripting via the 'form_id' parameter in all versions up to,
  and i…
summary: >-
  The Ultimate Member – User Profile, Registration, Login, Member Directory,
  Content Restriction & Membership Plugin plugin for WordPress is vulnerable to
  Stored Cross-Site Scripting via the 'form_id' parameter in all versions up to,
  and i…
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: ultimatemember
product: >-
  Ultimate Member – User Profile, Registration, Login, Member Directory, Content
  Restriction & Membership Plugin
affected:
  - >-
    ultimate_member_user_profile_registration_login_member_directory_content_restriction_membership_plugin
    <= 2.13.1
published: '2026-10-03'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T03:16:37.687'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-96270'
references:
  - url: 'https://github.com/ultimatemember/ultimatemember/releases/tag/2.14.0'
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/admin/core/class-admin-builder.php#L1090
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-form.php#L422
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-form.php#L768
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-user.php#L1447
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/um-short-functions.php#L900
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/um-short-functions.php#L980
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/5673f2b9-1c30-4ce0-8a8c-7580d0346cb9?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-03T02:37:32.158Z'
---

## Overview

The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'form_id' parameter in all versions up to, and including, 2.13.1 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. The injected payload is stored in the registering user's 'submitted' usermeta via update_user_meta() and is only triggered when an administrator opens the affected user record in the wp-admin Users modal, which inserts the unescaped output via jQuery .html().

## Remediation

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