Hustle – Email Marketing, Lead Generation, Optins, Popups <= 7.8.5 - Missing Authorization to Unpublished Form Exposure

The Hustle – Email Marketing, Lead Generation, Optins, Popups plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the preview_module() function in all versions up to, and including, 7.8.5. This makes it possible for authenticated attackers, with Subscriber-level access and above, to view unpublished forms.