CVE-2009-1070
Cross-site scripting (XSS) vulnerability in system/index.php in ExpressionEngine 1.6.4 through 1.6.6, and possibly earlier versions, allows remote attackers to inject arbitrary web script or HTML via the avatar parameter.
Date published : 2009-03-24
http://www.securityfocus.com/bid/34193
http://www.securityfocus.com/archive/1/502045/100/0/threaded