SQL injection vulnerability in index.php in the Your_Account module in PHP-Nuke 7.8 and earlier allows remote attackers to execute arbitrary SQL commands via the username variable (Nickname field).
https://exchange.xforce.ibmcloud.com/vulnerabilities/24769
http://www.vupen.com/english/advisories/2006/0636
http://www.securityfocus.com/bid/16691
http://www.securityfocus.com/archive/1/425173/100/0/threaded