Cross-site scripting (XSS) vulnerability in the anonymous comments feature in lib-comment.php in glFusion 1.1.0, 1.1.1, and earlier versions allows remote attackers to inject arbitrary web script or HTML via the username parameter to comment.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/48603
http://www.glfusion.org/article.php/xsscomments
http://www.fortconsult.net/images/pdf/advisories/glFusion-xss-advisory.pdf