Chartify < 3.6.0 - Missing Authentication for Administrative Function

Description

The plugin is vulnerable to Missing Authentication for Critical Function due to the plugin registering an unauthenticated AJAX action that dispatches to admin-class methods based on a request parameter, without any nonce or capability checks. This makes it possible for unauthenticated attackers to execute administrative functions via the wp-admin/admin-ajax.php endpoint granted they can identify callable method names.