Lafka Plugin <= 7.1.0 - Missing Authorization to Authenticated (Subscriber+) Theme Option Update

The Lafka Plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the 'lafka_options_upload' AJAX function in all versions up to, and including, 7.1.0. This makes it possible for authenticated attackers, with subscriber-level access and above, to update the theme option that overrides the site.