Oracle Java contains a flaw that allows content combining JMX (Java Management Extensions) MBean components and sun.org.mozilla.javascript.internal objects to call the 'setSecurityManager()' function to elevate privileges. The com.sun.jmx.mbeanserver.MBeanInstantiator.findClass method allows an attacker to retrieve Class references of any package. Using a reflection method (API) recursively, an attacker can then bypass security checks and use this to run privileged code.