Required Attention on <Script> tag in User input


We are using Cloudflare in our website made with Episerver ASP.Net hosted on Azure Cloud.

We have one form where user enters his input. We are handling built in encoding for the input field.

When user tries to put in input field, Cloudflare says Attention Required (gives CAPTCHA) and throws 403 error code. We are calling ajax call which is not happening because of this and call gets forbidden. What if we want to handle Xss attack at server side instead of Cloudflare intercepting for this specific case.

Thanks & Regards,
Sanket Mahimkar

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