Note for "Invalid ContentType may disclose cache directory" This vulnerability("Invalid ContentType may disclose cache directory") doesn't work on all systems. ("Invalid ContentType may disclose cache directory", at http://www.safecenter.net/UMBRELLAWEBV4/threadid10008/) Please note that execdror6 and LocalZoneInCache also depends on this vulnerability. (execdror6: http://www.safecenter.net/UMBRELLAWEBV4/execdror6/ LocalZoneInCache: http://www.safecenter.net/UMBRELLAWEBV4/LocalZoneInCache/) I have spent extra-ordinary time on this issue and here is all i know about it: First, The code was verified to work on a WinXp system(Simplified Chinese version) with all patches. Then, I sent LocalZoneInCache to HTTP-EQUIV, Dror Shalev and the Pull for testing: It works on Dror Shalev's WinXp machine(up-to-date) but it doesn't work on the Pull's Win2k system. (because he set killbit for Adodb.Stream activeX object.) Soon after that, HTTP-EQUIV found it does not work on his WinXp system(2-3 weeks old, with the latest IE patch). Then, to figure out what happened, i formatted disk and installed Win2k3 and WinXp(both Simplified Chinese version) and then applied the latest IE patch. Both remote compromise cases(LocalZoneInCache and execdror6) don't work any more. At last, i reproduced both remote compromise cases on MSIEv6 running on Simplified Chinese WinXp with the following patches: SP1;Q828750;Q330994;Q824145(a.k.a MS03-048) If you are using IE, please help me test it and send the result directly to my emailbox. Thanx in advance.