During the scan, Kayran managed to find the Open Redirect vulnerability.
This problem rises whenever you have input which you then use to redirect the user.
Open Redirection Vulnerability happens when a web application accepts untrusted input that could cause the web application to redirect the request to a URL contained within untrusted input.
An attacker could insert a new URL within the application, that can be leveraged to initiate more targeted phishing attacks against users using the application. An attacker could also redirect users to malicious external domains.
Whenever possible, applications should avoid incorporating user-controllable data into redirection destinations.