Executive brief
The Ultimate Member plugin for WordPress, which manages user profiles and memberships, contains a security flaw that allows unauthorized individuals to access sensitive database information. By sending a specially crafted search request, an attacker can bypass security controls to extract data from the website's database. This could lead to the exposure of private user details or other confidential site information.
Technical details
The Ultimate Member plugin for WordPress is vulnerable to blind SQL Injection via the 'search' parameter in the member directory component. This issue exists in versions up to and including 2.10.1 due to insufficient escaping of user-supplied input and a lack of proper SQL query preparation. An unauthenticated remote attacker can exploit this by appending malicious SQL commands to existing queries. This allows for the extraction of sensitive data from the database through inference (blind SQLi). The vulnerability is a regression or incomplete fix related to a previous patch in version 2.9.2.
Affected products
- Ultimate Member Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin up to, and including, 2.10.1
Timeline
- 2026-07-10: disclosed: Initial publication of the CVE record
- 2026-07-10: advisory: Wordfence published detailed advisory
References
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.10.1/includes/core/class-member-directory.php
- https://plugins.trac.wordpress.org/browser/ultimate-member/tags/2.10.1/includes/core/class-member-directory.php
- https://plugins.trac.wordpress.org/changeset/3222364/ultimate-member/trunk/includes/core/class-member-directory.php
- https://plugins.trac.wordpress.org/changeset/3265901/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/8f539e25-5483-417d-a3c5-e7034c03c673?source=cve