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.
History

Mon, 22 Dec 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 21 Dec 2025 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Ultimatemember
Ultimatemember ultimate Member
Ultimatemember ultimatemember
Ultimatemember user Profile & Membership
Wordpress
Wordpress wordpress
Vendors & Products Ultimatemember
Ultimatemember ultimate Member
Ultimatemember ultimatemember
Ultimatemember user Profile & Membership
Wordpress
Wordpress wordpress

Sat, 20 Dec 2025 08:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin <= 2.11.0 - Unauthenticated Sensitive Information Exposure
Weaknesses CWE-200
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2025-12-20T08:22:10.037Z

Updated: 2025-12-22T16:16:36.661Z

Reserved: 2025-10-29T20:02:17.937Z

Link: CVE-2025-12492

cve-icon Vulnrichment

Updated: 2025-12-22T16:16:32.824Z

cve-icon NVD

Status : Received

Published: 2025-12-20T09:15:54.857

Modified: 2025-12-20T09:15:54.857

Link: CVE-2025-12492

cve-icon Redhat

No data.