What the vulnerability does
01Description
The Ultimate Member plugin for WordPress is vulnerable to Profile Privacy Setting Bypass in all versions up to, and including, 2.11.0. This is due to a flaw in the secure fields mechanism where field keys are stored in the allowed fields list before the `required_perm` check is applied during rendering. This makes it possible for authenticated attackers with Subscriber-level access to modify their profile privacy settings (e.g., setting profile to "Only me") via direct parameter manipulation, even when the administrator has explicitly disabled the option for their role.
Explanation of Vulnerability in Simple Terms
02Summary
Ultimate Member plugin versions up to 2.11.0 contain an authorization flaw that allows authenticated users to modify content they should not have access to. The vulnerability requires a logged-in account but no special privileges. An attacker with a standard user account can alter data through the plugin's functionality, potentially affecting site integrity.
What an attacker can do
03Attacker Capabilities
Modify content or data they should not have permission to change.
Potential impact on your site
04Site Impact
Any registered user can alter site data or other users' content, compromising data integrity and trust.
Conditions required to exploit
05Prerequisites
Attacker must have a valid user account and be logged in to the site.
Key dates
06Disclosure timeline
December 17, 2025
CVE published
April 8, 2026
Record updated
