CVE-2026-13355

The Meta Box AIO WordPress plugin (versions ≤ 3.11.0 ) is vulnerable to unauthenticated Privilege Escalation to Administrator due to a chained flaw in its bundled components. The mb-frontend-submission component lacks authorization checks in the populate_via_query_string() function, allowing atta...

PT-2026-96644

Name of the Vulnerable Software and Affected Versions Meta Box AIO versions prior to 3.11.1 Meta Box Frontend Submission versions prior to 4.5.7 Meta Box User Profile versions prior to 3.11.1 Description A chained flaw allows unauthenticated attackers to escalate privileges to Administrator. The...

CVE-2026-13355: Improper Privilege Management

The Meta Box AIO plugin for WordPress is vulnerable to Privilege Escalation to Administrator in versions up to, and including, 3.11.0. This is due to a chained flaw: the populateviaquerystring function in the mb-frontend-submission component unconditionally overrides the form's target objectid fr...