Improper Control of Generation of Code ('Code Injection') in Spring Framework
Description
SpringSource Spring Framework 2.5.x before 2.5.6.SEC02, 2.5.7 before 2.5.7.SR01, and 3.0.x before 3.0.3 allows remote attackers to execute arbitrary code via an HTTP request containing `class.classLoader.URLs[0]=jar:` followed by a URL of a crafted .jar file.