I have created a Stripe Payment Plugin. and it is working fine in local. but on the server generate 403 - Forbidden: Access is denied "when stripe redirect to Webhook controller"
Are you testing by same mode (test/live) at local & server? Please check api key.
I Use in local test key and Server live key.
When we refresh the page after getting 403 it works fine with same response url from strip.
What is you nopCommerce version?
Assuming it's something related to web.config, do you have any modification over there compare to default nop?
It could be related to some firewall/proxy on your server/network
That was firewall issue