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CVE-2026-14488

CRITICAL 9.1 CVSS 3.1
Published
July 29, 2026
Last modified
October 23, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-862
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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.

Affected products and versions

  • Meta Box Meta Box AIO — Up to and including 3.8.0

References

  • metabox.io https://metabox.io/plugins/meta-box-aio/changelog/
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/e9506f84-3d33-48e0-8dce-d517e1a923e4?source=cve
  • nvd.nist.gov Official NVD record