Multiple cross-site scripting (XSS) vulnerabilities in Professional Home Page Tools Login Script, as of July 2006, allow remote attackers to inject arbitrary web script or HTML via the (1) name, (2) vorname, and (3) nachname parameters in the register script. NOTE: some details have been obtained from third party sources.
https://exchange.xforce.ibmcloud.com/vulnerabilities/27967
http://www.vupen.com/english/advisories/2006/2981
http://www.securityfocus.com/archive/1/441194/100/0/threaded
http://securityreason.com/securityalert/2329
http://secunia.com/advisories/21206
http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/048194.html