WP Directory Kit <= 1.4.9 - Unauthenticated Email Exposure via wdk_public_action

The WP Directory Kit plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.4.9 via the wdk_public_action AJAX handler. This makes it possible for unauthenticated attackers to extract email addresses for users with Directory Kit-specific user roles.