The SAML 2.0 service provider of SAP Netweaver AS Java Web Application, 7.50, does not sufficiently encode user controlled inputs, which results in Cross-Site Scripting (XSS) vulnerability.
https://launchpad.support.sap.com/#/notes/2560741
https://blogs.sap.com/2018/02/13/sap-security-patch-day-february-2018/