The Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.11.0 via the ajax_get_members function. This is due to the use of a predictable low-entropy token (5 hex characters derived from md5 of post ID) to identify member directories and insufficient authorization checks on the unauthenticated AJAX endpoint. This makes it possible for unauthenticated attackers to extract sensitive data including usernames, display names, user roles (including administrator accounts), profile URLs, and user IDs by enumerating predictable directory_id values or brute-forcing the small 16^5 token space.
CVE-2025-12492 is a medium severity with CVSS 5.3 Sensitive Information Exposure issue affecting the Plugin Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin. It affects Versions up to 2.11.0 and is fixed in 2.11.1.
CVE-2025-12492 is tracked for the Plugin Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin as medium severity with CVSS 5.3. The affected range is Versions up to 2.11.0. Update Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin to 2.11.1 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
ultimate-member
View on wordpress.org
|
| CVE | CVE-2025-12492 |
| Patched Versions |
2.11.1
|
| Affected Versions |
Versions up to 2.11.0
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Ultimate Member <= 2.1.11 - Unauthenticated Privilege Escalation via User Roles
Ultimate Member <= 2.1.11 - Unauthenticated Privilege Escalation via User Meta
Ultimate Member <= 2.1.11 - Authenticated Privilege Escalation via Profile Update
Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin 2.1.3 - 2.8.2 - Unauthenticated SQL Injection
Ultimate Member <= 2.6.6 - Privilege Escalation via Arbitrary User Meta Updates
Ultimate Member <= 2.0.39 - Privilege Escalation
Ultimate Member <= 2.0.39 - Cross-Site Request Forgery
Ultimate Member <= 2.0.6 - Multiple Cross-Site Request Forgery Issues
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