CVE-2026-18347 Missing authorization in Kirki – Freeform Page Builder, Website Builder & Customizer
Authenticated attackers can read sensitive user metadata and records of any user, including administrators, via the frontend collection endpoint.
- 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-2026-18347?
CVE-2026-18347 is a medium-severity missing authorization vulnerability in themeum Kirki – Freeform Page Builder, Website Builder & Customizer, published on 16 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.1.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with custom-level access and above, to read arbitrary user metadata and sensitive user record fields — including email address, assigned roles, registration date, and any user_meta values — belonging to any WordPress user including administrators, by supplying a target user ID with a user-type context to the frontend collection endpoint.
Weakness: CWE-862
Which versions are affected by CVE-2026-18347?
How do I fix CVE-2026-18347?
No fix has been published for CVE-2026-18347 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-2026-18347 being exploited?
There is no known exploitation of CVE-2026-18347 in the wild and no public exploit code.
Sources
Also known as GHSA-mp8r-x8v9-xf3q.