The WP Child Theme Generator plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the wctg_easy_child_theme() function in all versions up to, and including, 1.1.1. This makes it possible for unauthenticated attackers to create a blank child theme and activate it cause the site to whitescreen.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.