CVE-2026-88904 PuppyFW <= 0.4.4 - Subscriber+ Arbitrary Blog Options Update and Deletion Leading to Privilege Escalation
Authenticated subscribers can escalate privileges by modifying blog options due to missing authorization checks in the PuppyFW 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-2026-88904?
CVE-2026-88904 is a high-severity missing authorization vulnerability in Unknown PuppyFW, published on 17 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The PuppyFW WordPress plugin through 0.4.4 does not have proper authorisation on one of its REST routes, which tests the caller against a capability taken from the request itself, allowing any authenticated user, including subscribers, to add, modify and delete arbitrary blog options and thereby escalate their privileges.
Weakness: CWE-269
Which versions are affected by CVE-2026-88904?
How do I fix CVE-2026-88904?
No fix has been published for CVE-2026-88904 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-2026-88904 being exploited?
There is no known exploitation of CVE-2026-88904 in the wild and no public exploit code.
Sources
Also known as GHSA-f6x2-w8q2-ff47.