The ApplyOnline – Application Form Builder and Manager plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the aol_modal_box AJAX action in all versions up to, and including, 2.6.2. This makes it possible for authenticated attackers, with subscriber access or higher, to view Application submissions.
https://wordpress.org/plugins/apply-online/
https://plugins.trac.wordpress.org/changeset/3095921
https://plugins.trac.wordpress.org/browser/apply-online/trunk/admin/class-applyonline-admin.php#L875