Easy Dropbox Integration < 2.2.0 - Unauthenticated Arbitrary Connected Dropbox File Access and Upload via nopriv AJAX

The Easy Integration for Dropbox WordPress plugin before 2.2.0 does not perform authorization checks on several of its file-management AJAX actions that it also registers for unauthenticated users, allowing an unauthenticated attacker to list, download and upload arbitrary files across the connected Dropbox account and to read the connected account and administrator email addresses.