The WPFront User Role Editor plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.2.1.11184 via the wpfront_user_role_editor_assign_roles_user_autocomplete AJAX action. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract retrieve a list of all user email addresses who are registered on the site.

The WPFront User Role Editor WordPress plugin before 3.2.1.11184 does not sanitise and escape the changes-saved parameter before outputting it back in the admin dashboard, leading to a Reflected Cross-Site Scripting