Threat database

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 populate_via_query_string() function in the mb-frontend-submission component unconditionally overrides the form's target object_id from the GET parameter 'rwmb_frontend_field_object_id' without any authorization check, and Form::process() lacks the user_can_edit() check present in render(), allowing unauthenticated attackers to overwrite the post_content of any page with an arbitrary shortcode via wp_update_post(); the mb-user-profile component then directly trusts the 'role' and 'auto_login' shortcode attributes in the injected [mb_user_profile_register] shortcode with no role validation. This makes it possible for unauthenticated attackers to elevate their privileges to Administrator. The standalone plugins Meta Box Frontend Submission (in versions up to 4.5.6) and Meta Box User Profile (versions up to 3.11.0) are also affected.

Meta Box AIO plugin for WordPress versions up to and including 3.8.0 contains a missing authorization vulnerability in the MB Frontend Submission extension. This flaw allows unauthenticated attackers to delete arbitrary posts and pages by exploiting the mbfs_delete action routing without proper capability or ownership checks. The nonce verification intended to protect against such actions is bypassable due to being gated behind an AJAX check that does not apply to template_redirect requests. This vulnerability has a critical severity with a CVSS score of 9.1.