The logon application of SAP NetWeaver AS Java 7.10 to 7.11, 7.20, 7.30, 7.31, 7.40, 7.50 does not sufficiently encode user-controlled inputs, resulting in a cross-site scripting (XSS) vulnerability.
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=499356993