Cross-site scripting (XSS) vulnerability in calendar.php in WWWthreads allows remote attackers to inject arbitrary web script or HTML via the week parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/27997
http://www.vupen.com/english/advisories/2006/3005
http://www.securityfocus.com/archive/1/441191/100/0/threaded