A pre-authentication reflected cross-site scripting issue exists where unauthenticated attackers can inject and execute arbitrary JavaScript. This is achieved by submitting a crafted `LINK` query parameter to the '/System/Session-1' endpoint. Exploitation can lead to credential harvesting, manipulation of the login flow, access to browser-visible data, and the execution of same-origin requests to controller endpoints, including an origin-switch primitive against the internal controller in Cloud RIA scenarios.