SQL injection vulnerability in main/tracking/userLog.php in Francisco Burzi PHP-Nuke 8.0 allows remote attackers to execute arbitrary SQL commands via the HTTP Referer header.
https://exchange.xforce.ibmcloud.com/vulnerabilities/50818
https://euvd.enisa.europa.eu/vulnerability/EUVD-2009-1837
http://www.securityfocus.com/bid/35117
http://gsasec.blogspot.com/2009/05/php-nuke-v80-referer-sql-injection.html