What the vulnerability does
01Description
The Ultimate Member plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.11.2. This is due to the '{usermeta:password_reset_link}' template tag being processed within post content via the '[um_loggedin]' shortcode, which generates a valid password reset token for the currently logged-in user viewing the page. This makes it possible for authenticated attackers, with Contributor-level access and above, to craft a malicious pending post that, when previewed by an Administrator, generates a password reset token for the Administrator and exfiltrates it to an attacker-controlled server, leading to full account takeover.
Explanation of Vulnerability in Simple Terms
02Summary
Ultimate Member versions up to 2.11.2 contain an improper access control vulnerability that allows authenticated users to perform unauthorized actions. An attacker with a low-privilege account can read sensitive data, modify site content, or disrupt service by exploiting this flaw. User interaction is required to trigger the vulnerability. Update to a version newer than 2.11.2 to remediate.
What an attacker can do
03Attacker Capabilities
Read sensitive data, modify content, or disrupt service with a low-privilege user account.
Potential impact on your site
04Site Impact
Unauthorized users can access private member data, alter site content, or cause downtime on your membership site.
Conditions required to exploit
05Prerequisites
Attacker needs a valid low-privilege user account and must trick a user into clicking a malicious link.
Key dates
06Disclosure timeline
March 27, 2026
CVE published
April 8, 2026
Record updated
