CVE-2026-13355

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...

CVE-2026-13355 Meta Box AIO <= 3.11.0 And Standalone Plugin Extensions - Unauthenticated Privilege Escalation to Administrator to 'rwmb_frontend_field_object_id' Parameter

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...