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/%E6%BA%90%E4%BE%86%E6%9C%89%E7%A5%A2-%E8%A7%92%E8%81%B2%E4%BD%BF%E5%9C%98%E5%9F%B9%E9%9D%88%E4%BD%88%E9%81%93%E9%9F%B3%E6%A8%82%E6%9C%83%20_e3087.aspx
Physical Path   D:\APPS\cbcmDNN\webroot\newsandevent\%E6%BA%90%E4%BE%86%E6%9C%89%E7%A5%A2-%E8%A7%92%E8%81%B2%E4%BD%BF%E5%9C%98%E5%9F%B9%E9%9D%88%E4%BD%88%E9%81%93%E9%9F%B3%E6%A8%82%E6%9C%83%20_e3087.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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