Target First Plugin 2.0 - Unauthenticated Stored XSS via Licence Key

The Target First WordPress Plugin v2.0, also previously known as Watcheezy, suffers from a critical unauthenticated stored XSS vulnerability. An attacker could change the licence key value through a POST on any URL with the 'weeWzKey' parameter that will be save as the 'weeID option and is not sanitized.