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September 25, 2007

Script Injection Attacks : A potentially dangerous Request.Form value was detected from the client

If a web server responds with an HTML error page containing the error message "A potentially dangerous Request.Form value was detected from the client", it is because your application sent unencoded HTML in an HTTP POST request form field.

Here is an article about it:
http://www.asp.net/learn/whitepapers/request-validation/


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