SiteKiosk v4.x and 5.x contain vulnerabilities which allow users to bypass URL restrictions and/or browse for free because the software fails to check if the supplied URL contains a wildcard DNS entry.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/31921/SiteKiosk.txt
Source: https://packetstormsecurity.com/files/31921/SiteKiosk.txt.html