CVE-2026-4609 ProfileGrid <= 5.9.8.4 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Group Joining
Authenticated subscribers can bypass authorization to join any ProfileGrid group, including paid ones, in the WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4609?
CVE-2026-4609 is a high-severity missing authorization vulnerability in metagauss ProfileGrid – User Profiles, Groups and Communities, published on 13 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-4609?
How do I fix CVE-2026-4609?
No fix has been published for CVE-2026-4609 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-4609 being exploited?
There is no known exploitation of CVE-2026-4609 in the wild and no public exploit code.