What the vulnerability does
01Description
The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 5.9.9.5. This is due to the plugin not validating a `user_login` on registration forms that don't contain this parameter, and not properly handling the error messages. This makes it possible for unauthenticated attackers to change email address of user account with ID=1 (usually an administrator), and leverage that to reset the user's password and gain access to their account.
Explanation of Vulnerability in Simple Terms
02Summary
ProfileGrid versions up to 5.9.9.5 contain a vulnerability that allows unauthenticated attackers to read sensitive data, modify site content, or disrupt service without any user interaction. The vulnerability is network-accessible and requires no special conditions to exploit. Site administrators should update immediately to a version newer than 5.9.9.5.
What an attacker can do
03Attacker Capabilities
Read sensitive data, modify content, or disrupt the site without logging in.
Potential impact on your site
04Site Impact
Attackers can access user data, alter site content, or cause downtime without needing credentials.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
June 30, 2026
CVE published
June 30, 2026
Record updated
