CVE-2026-78278 WordPress Fluent Boards Pro plugin <= 2.0.11 - Insecure Direct Object References (IDOR) vulnerability
Subscribers can access or modify other users' data due to missing authorization checks in the Fluent Boards Pro plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78278?
CVE-2026-78278 is a medium-severity missing authorization vulnerability in WP ManageNinja LLC Fluent Boards Pro, published on 24 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Subscriber Insecure Direct Object References (IDOR) in Fluent Boards Pro <= 2.0.11 versions.
Weakness: CWE-639
Which versions are affected by CVE-2026-78278?
How do I fix CVE-2026-78278?
No fix has been published for CVE-2026-78278 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-2026-78278 being exploited?
There is no known exploitation of CVE-2026-78278 in the wild and no public exploit code.
Sources
Also known as CVE-2026-78466, GHSA-qrr7-v4w9-q4hr.