The User Account and Authentication service (UAA) for SAP HANA extended application services, advanced model (SAP HANA XS advanced model) allows an unauthenticated attacker to craft a malicious link, that, when clicked by a victim, redirects the browser to a malicious site due to insufficient redirect URL validation. On successful exploitation attacker can cause limited impact on confidentiality, integrity, and availability of the system.
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.