WordPress Master Elements plugin through 8.0 contains a SQL injection vulnerability. The plugin does not validate and escape the meta_ids parameter of its remove_post_meta_condition AJAX action, available to both unauthenticated and authenticated users, before using it in a SQL statement. An attacker can possibly obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site.
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary SQL queries, potentially leading to unauthorized access, data leakage, or further compromise of the WordPress site.