CVE-2026-14488 Missing authorization in Meta Box AIO
Unauthenticated attackers can delete arbitrary posts and pages in Meta Box AIO by bypassing authorization checks in the frontend submission extension.
- 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-2026-14488?
CVE-2026-14488 is a critical missing authorization vulnerability in Meta Box AIO, published on 29 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Meta Box AIO plugin for WordPress is vulnerable to Missing Authorization via the template_redirect dispatcher in the MB Frontend Submission extension in versions up to, and including, 3.8.0. This is due to the handle_request() function routing the mbfs_delete action without any capability or ownership check, and the nonce verification in check_ajax() being gated behind is_ajax() which is false for template_redirect requests, making it bypassable. This makes it possible for unauthenticated attackers to delete arbitrary posts and pages by supplying an attacker-controlled post ID via the rwmb_frontend_field_object_id GET parameter on any page that hosts a frontend submission form regardless of whether allow_delete is enabled.
Weakness: CWE-862
Which versions are affected by CVE-2026-14488?
How do I fix CVE-2026-14488?
No fix has been published for CVE-2026-14488 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-2026-14488 being exploited?
There is no known exploitation of CVE-2026-14488 in the wild and no public exploit code.
Sources
Also known as GHSA-gvv9-4pjw-fv88.