BoxBilling suffers from a stored cross-site scripting vulnerability. Input passed to the 'message' POST parameter thru the 'Notification Center' extension/module is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site. Advisory: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5163.php
