Cross-site scripting (XSS) vulnerability in display.php in Simple Machines Forum (SMF) 1.1 Final and earlier allows remote attackers to inject arbitrary web script or HTML via the contents of a file that is uploaded with the image parameter set, which can be interpreted as script by Internet Explorer's automatic type detection.
https://exchange.xforce.ibmcloud.com/vulnerabilities/30659
http://www.vupen.com/english/advisories/2006/4843
http://www.securityfocus.com/bid/21431
http://www.securityfocus.com/archive/1/453426/100/0/threaded