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   ExtensionlessUrlHandler-Integrated-4.0
Error Code   0x00000000
Requested URL   http://ghas-studio.com:80/Article/News/AC21012617310461/%E6%A1%83%E5%9C%92%E4%B8%AD%E5%A3%A2%E9%9F%93%E5%BC%8F%E5%BD%A2%E8%B1%A1%E7%85%A7%EF%BC%8F%E5%AD%B8%E5%A3%AB%E7%85%A7%EF%BD%9E%E8%91%9B%E9%BB%91%E6%96%AF%E5%B9%B8%E7%A6%8F%E6%94%9D%E5%BD%B1
Physical Path   C:\WebSites\iSellSite\Article\News\AC21012617310461\%E6%A1%83%E5%9C%92%E4%B8%AD%E5%A3%A2%E9%9F%93%E5%BC%8F%E5%BD%A2%E8%B1%A1%E7%85%A7%EF%BC%8F%E5%AD%B8%E5%A3%AB%E7%85%A7%EF%BD%9E%E8%91%9B%E9%BB%91%E6%96%AF%E5%B9%B8%E7%A6%8F%E6%94%9D%E5%BD%B1
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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