Advanced CF7 DB < 2.1.0 - Missing Authorization to Authenticated (Subscriber+) Form Submissions Excel Export

Description

The Advanced Contact form 7 DB plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the 'vsz_cf7_export_to_excel' function in all versions up to, and including, 2.0.9. This makes it possible for authenticated attackers, with Subscriber-level access and above, to export form submissions to excel file.