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   https://www.cbcm.org:443/%E4%BC%9A%E5%91%98%E4%B8%93%E5%8C%BA/%E4%BC%9A%E5%91%98%E7%99%BB%E5%85%A5/tabid/113/language/zh-CN/Default.aspx?returnurl=%252Fzh-cn%252F%25E6%2595%2599%25E4%25BC%259A%25E8%25A1%258C%25E4%25BA%258B%25E5%258E%2586%252Fallchurchwideeventcalendar(zhcn).aspx
Physical Path   D:\APPS\cbcmDNN\webroot\%E4%BC%9A%E5%91%98%E4%B8%93%E5%8C%BA\%E4%BC%9A%E5%91%98%E7%99%BB%E5%85%A5\tabid\113\language\zh-CN\Default.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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