This indicates an attack attempt against a Cross-Site Scripting vulnerability in SAP Internet Transaction Server.
The vulnerability is caused by a lack of sanitizing of the "service" parameter that is passed to "wgate.dll". A remote attacker may be able to exploit this to execute arbitrary script code within the context of the application, via a crafted HTTP request.
SAP Internet Transaction Server (ITS) 46188.8.131.523011
System Compromise: Remote attackers can execute arbitrary script code on vulnerable systems.
Currently we are unaware of any vendor supplied patch for this issue.