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://apsayan.com:80/web/%D8%A7%D8%B9%D9%84%D8%A7%D9%85%D9%86%D8%AA%D8%A7%DB%8C%D8%AC/tabid/96/ctl/SendPassword/Default.aspx?returnurl=%252Fweb%252F%25D8%25A7%25D8%25B9%25D9%2584%25D8%25A7%25D9%2585%25D9%2586%25D8%25AA%25D8%25A7%25DB%258C%25D8%25AC%252Ftabid%252F96%252FDefault.aspx
Physical Path   C:\Inetpub\vhosts\apsayan.com\httpdocs\web\%D8%A7%D8%B9%D9%84%D8%A7%D9%85%D9%86%D8%AA%D8%A7%DB%8C%D8%AC\tabid\96\ctl\SendPassword\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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