IIS 7 and Above
URL Rewrite Module
A potentially dangerous Request.Path value was detected from the clie...
Re: A potentially dangerous Request.Path value was detected from the...
May 03, 2021 01:59 AM|samwu|LINK
Sample URL :
Exception Details: System.Web.HttpException: A potentially dangerous Request.Path value was detected from the client (:).
After.NET 4.0, if the url contains some special characters, it will occur this error. I did not find the special character ":" in your URL, but I found the special character ";". You can either try to remove the special character and try again, or you can
fix this error either by encoding your URL or by modifying your web.config file as:
<httpRuntime requestPathInvalidCharacters="" requestValidationMode="2.0" />
<pages validateRequest="false" />