Stimulsoft (aka Stimulsoft Reports) 2013.1.1600.0, when Compilation Mode is used, allows an attacker to execute arbitrary C# code on any machine that renders a report, including the application server or a user's local machine, as demonstrated by System.Diagnostics.Process.Start.
A Remote Code Execution vulnerability in Stimulsoft (aka Stimulsoft Reports) 2013.1.1600.0 allows an attacker to encode C# scripts as base-64 in the report XML file so that they will be compiled and executed on the server that processes this file. This can be used to fully compromise the server.