CVE-2026-88912 rtMedia for WordPress, BuddyPress and bbPress < 4.7.12 - Subscriber+ Arbitrary Activity Privacy Modification via IDOR

Medium 4.2 Published Updated

Subscribers can modify privacy settings of other users' activities due to missing ownership checks, allowing unauthorized data modification.

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-2026-88912?

CVE-2026-88912 is a medium-severity missing authorization vulnerability in Unknown rtMedia for WordPress, BuddyPress and bbPress, published on 13 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The rtMedia for WordPress, BuddyPress and bbPress WordPress plugin before 4.7.12 does not check ownership before changing the privacy level of an activity and its attached media, relying only on a nonce shared with every logged-in user, allowing users with a subscriber-level account or above to make another user's private activity public or hide it.

Weakness: CWE-639

Which versions are affected by CVE-2026-88912?

How do I fix CVE-2026-88912?

No fix has been published for CVE-2026-88912 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-2026-88912 being exploited?

There is no known exploitation of CVE-2026-88912 in the wild and no public exploit code.

Sources

Also known as GHSA-fvcq-6v6m-mmrf.

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