HTTP Error 404.11 - Not Found

The request filtering module is configured to deny a request that contains a double escape sequence.

Most likely causes:

  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.

Things you can try:

  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.

Detailed Error Information:

Module   RequestFilteringModule
Notification   BeginRequest
Handler   PageHandlerFactory-Integrated-4.0
Error Code   0x00000000
Requested URL   http://www.cbcm.org:80/newsandevent/%E7%B2%B5%E8%AA%9E%E8%A9%A9%E6%AD%8C%E8%A6%8B%E8%AD%89%E4%BD%88%E9%81%93%E6%9C%83-%E6%96%B0%E5%BF%83%E9%9F%B3%E6%A8%82%E4%BA%8B%E5%B7%A5%20_e2949.aspx
Physical Path   D:\APPS\cbcmDNN\webroot\newsandevent\%E7%B2%B5%E8%AA%9E%E8%A9%A9%E6%AD%8C%E8%A6%8B%E8%AD%89%E4%BD%88%E9%81%93%E6%9C%83-%E6%96%B0%E5%BF%83%E9%9F%B3%E6%A8%82%E4%BA%8B%E5%B7%A5%20_e2949.aspx
Logon Method   Not yet determined
Logon User   Not yet determined

More Information:

This is a security feature. Do not change this feature unless the scope of the change is fully understood. You should take a network trace before changing this value to confirm that the request is not malicious. If double escape sequences are allowed by the server, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This could be caused by a malformed URL sent to the server by a malicious user.

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