Multiple cross-site scripting (XSS) vulnerabilities in PHP Web Statistik 1.4 allows remote attackers to inject arbitrary web script or HTML via (1) the lastnumber parameter to stat.php and (2) the HTTP referer to pixel.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/23385
https://exchange.xforce.ibmcloud.com/vulnerabilities/23379
http://www.vupen.com/english/advisories/2005/2645
http://www.securityfocus.com/bid/15603
http://secunia.com/advisories/17789
http://freewebstat.com/changelog-english.html
http://cert.uni-stuttgart.de/archive/bugtraq/2005/11/msg00325.html