CyberRota Analysis
AI-GeneratedThe Meta Box AIO plugin for WordPress, along with its standalone components, is susceptible to a critical privilege escalation vulnerability that allows unauthenticated attackers to gain Administrator access. This is due to a lack of proper authorization checks in the handling of form submissions, enabling attackers to manipulate post content and exploit role attributes without validation. WordPress site administrators using affected versions should prioritize immediate updates to mitigate the risk of unauthorized access and potential site compromise.
Original NVD Description
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.