Cross-site scripting (XSS) vulnerability in PHP-Fusion 6.00.107 and earlier allows remote attackers to inject arbitrary web script or HTML via nested, malformed URL BBCode tags.
https://exchange.xforce.ibmcloud.com/vulnerabilities/22056
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-2784
http://www.securityfocus.com/bid/14688