What the vulnerability does
01Description
The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to unauthorized message deletion due to a missing capability check on the pg_delete_msg() function in all versions up to, and including, 5.9.8.1. This is due to the function not verifying that the requesting user has permission to delete the targeted message. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary messages belonging to any user by sending a direct request with a valid message ID (mid parameter).
Explanation of Vulnerability in Simple Terms
02Summary
ProfileGrid versions up to 5.9.8.1 lack proper authorization checks, allowing authenticated users to modify data they should not have access to. An attacker with a low-privilege account can alter information belonging to other users or the site. The vulnerability requires login but no special user role. Update to a version newer than 5.9.8.1 to resolve this issue.
What an attacker can do
03Attacker Capabilities
Modify user data or site content they do not own or have permission to change.
Potential impact on your site
04Site Impact
User data integrity is at risk; attackers with basic accounts can alter other users' profiles or community content.
Conditions required to exploit
05Prerequisites
Attacker must have a valid login account with low-level privileges; no special role required.
Key dates
06Disclosure timeline
March 7, 2026
CVE published
April 8, 2026
Record updated
