CVE-2026-12689 ProfileGrid < 5.9.9.7 - Subscriber+ Cross-User Private Message Thread Deletion and Tampering via Missing Authorization
Authenticated subscribers can delete or tamper with other users' private message threads due to missing authorization checks in ProfileGrid.
- 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-2026-12689?
CVE-2026-12689 is a medium-severity missing authorization vulnerability in Unknown ProfileGrid, published on 24 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The ProfileGrid WordPress plugin before 5.9.9.7 does not perform any authorization or ownership check on some of its private-message thread actions, allowing authenticated users with Subscriber-level access and above to soft-delete, tamper with the metadata of, and mark as read other users' private message threads.
Weakness: CWE-862
Which versions are affected by CVE-2026-12689?
How do I fix CVE-2026-12689?
No fix has been published for CVE-2026-12689 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-2026-12689 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-12689 exists.
Sources
Also known as GHSA-gv3q-r4q9-h53h.