Invoct – PDF Invoices & Billing for WooCommerce <= 1.6 - Missing Authorization to Authenticated (Subscriber+) Information Exposure

The Invoct – PDF Invoices & Billing for WooCommerce plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on multiple functions in all versions up to, and including, 1.6. This makes it possible for authenticated attackers, with Subscriber-level access and above, to retrieve invoice clients, invoice items, and list of WordPress users along with their emails.