What the vulnerability does
01Description
The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the pm_invite_user function in all versions up to, and including, 5.9.8.4. This makes it possible for authenticated attackers, with Subscriber-level access and above, to add themselves or any registered user to any ProfileGrid group, including closed and paid groups, bypassing all authorization and payment gates.
Explanation of Vulnerability in Simple Terms
02Summary
ProfileGrid versions up to 5.9.8.4 lack proper authorization checks, allowing authenticated users to modify data they should not have access to. An attacker with a low-privilege account can change sensitive information belonging to other users or the site. The vulnerability requires login but no special interaction from victims.
What an attacker can do
03Attacker Capabilities
Modify or change data belonging to other users without their permission.
Potential impact on your site
04Site Impact
User data integrity is at risk; members can alter profiles, groups, or community settings of other users.
Conditions required to exploit
05Prerequisites
Attacker must have a valid user account on the site (low privilege level).
Key dates
06Disclosure timeline
May 13, 2026
CVE published
May 13, 2026
Record updated
