CVE-2020-15233: URL Redirection to Untrusted Site (Open Redirect)

ORY Fosite is a security first OAuth2 & OpenID Connect framework for Go. In Fosite, there is an issue in which an an attacker can override the registered redirect URL by performing an OAuth flow and requesting a redirect URL that is to the loopback adapter. Attackers can provide both custom URL query parameters to their loopback redirect URL and actually overriding the host of the registered redirect URL. These attacks are only applicable in scenarios where the attacker has access over the loopback interface.