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CVE-2026-96270

HIGH 7.2 CVSS 3.1
Published
October 3, 2026
Last modified
October 6, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Description

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().

Affected WordPress components

  • Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin Plugin · ultimate-member
    Confirmed match Active
    Up to and including 2.13.1
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • ultimatemember Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin — Up to and including 2.13.1

References

  • github.com https://github.com/ultimatemember/ultimatemember/releases/tag/2.14.0
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/admin/core/class-admin-builder.php#L1090
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-form.php#L422
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-form.php#L768
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-user.php#L1447
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/um-short-functions.php#L900
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/um-short-functions.php#L980
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/5673f2b9-1c30-4ce0-8a8c-7580d0346cb9?source=cve
  • nvd.nist.gov Official NVD record