ProfileGrid <= 5.5.1 - Authenticated (Subscriber+) Arbitrary Option Update

The ProfileGrid plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'profile_magic_check_smtp_connection' function in versions up to, and including, 5.5.1. This makes it possible for authenticated attackers, with subscriber-level permissions or above to update the site options arbitrarily. This can be used by attackers to achieve privilege escalation.