CVE-2026-93428

Impact

The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.13.1 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to view privacy-restricted member profile field values — including fields explicitly configured as owner-only, members-only, or role-restricted — by querying the publicly accessible wp_ajax_nopriv_um_get_members endpoint. The nonce required by the endpoint ('um-frontend-nonce') is emitted to all unauthenticated visitors via wp_localize_script, meaning it provides no meaningful access control and any anonymous visitor can satisfy the endpoint's authentication requirements.

Affected packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://github.com/ultimatemember/ultimatemember/releases/tag/2.14.0
• https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-ajax-common.php#L61
• https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-fields.php#L144
• https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-member-directory.php#L2795
• https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/class-member-directory.php#L2839
• https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/core/um-actions-profile.php#L1319
• https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.13.1/includes/um-short-functions.php#L1579
• https://www.wordfence.com/threat-intel/vulnerabilities/id/cde81421-e080-4530-87a5-6515f1c9800b?source=cve