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Server error: potentially dangerous request form was received from the client

  • Updated

Users receive the below server error on submitting, saving or refreshing data in Web Suite:

"a potentially dangerous request form was received from the client"

It seems that the Memo field has some scripting text in it, e.g., 

ws_script_text.png

The ASP.NET sees it as a threat and invalidates any action like saving that data. 

Note: Make sure there is no special character like colons, quotes, commas or semicolons in any field of the data entries you make. 

You can bypass this validation by following the below steps:

Note: Please apply the below changes when everyone has logged out of Web Suite.

1. Make a copy of the web.config file. By default, you can locate this web.config file at C:\Program Files (x86)\BillQuick Web Suite\Web Suite 20xx\public.

2. Open the web.config file using Notepad.exe.

3. Make the below highlighted changes in the system.web section:

ws_system.web_code.png
You need to update the existing values to:

requestValidationMode="2.0"/>

and 

validateRequest="false">

4. Now restart IIS.

5. Browse to Web Suite 20xx and then log in.

The issue should be resolved.

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