What is Server Side Request Forgery (SSRF)?
SSRF (Server-Side Request Forgery) is a security vulnerability that occurs when an attacker is able to send a request to a server from the server itself. This vulnerability can be exploited to gain unauthorized access to resources that should not be accessible from the server.
So thus, An SSRF fault occurs when a web application retrieves a remote resource without checking the URL provided by the user. This enables an attacker to force a program to send a forged request to an unintended recipient, even when protected by a firewall, VPN, or some other type of network access control list.