Meta Box AIO <= 3.8.0 - Missing Authorization to Unauthenticated Arbitrary Post Deletion via 'rwmb_frontend_field_object_id' Parameter
| CVE | CVE-2026-14488 |
|---|---|
| CVSS | 9.1 (Critical) |
| Publicly Published | July 28, 2026 |
| Last Updated | July 29, 2026 |
| Researcher |
Austin Ginder
- Anchor Hosting
|
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.
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Vulnerability Details for Meta Box AIO
| Software Type | Plugin |
|---|---|
| Software Slug | meta-box-aio |
| Patched? | Yes |
| Remediation | Update to version 3.9.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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