CVE-2025-12826 Missing authorization in Custom Post Type UI
Authenticated subscribers can modify custom post types due to missing capability checks in the Custom Post Type UI 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-2025-12826?
CVE-2025-12826 is a medium-severity missing authorization vulnerability in webdevstudios Custom Post Type UI, published on 4 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Custom Post Type UI plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.18.0. This is due to the plugin not verifying that a user has the required capability to perform actions in the "cptui_process_post_type" function. This makes it possible for authenticated attackers, with subscriber level access and above, to add, edit, or delete custom post types in limited situations.
Weakness: CWE-862
Which versions are affected by CVE-2025-12826?
How do I fix CVE-2025-12826?
No fix has been published for CVE-2025-12826 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-2025-12826 being exploited?
There is no known exploitation of CVE-2025-12826 in the wild and no public exploit code.
Sources
Also known as GHSA-p4vc-pp2h-cfvh.