A vulnerability was found in xstream API version 1.4.10, if the security framework has not been initialized, it may allow a remote attacker to run arbitrary shell commands by manipulating the processed input stream when unmarshaling XML or any supported format. e.g. JSON. This a regression of CVE-2013-7285 fixed in 1.4.7 (fixed) as of BPMS 6.0.1, the regression was introduced with xstream-1.4.10 implemented in RHPAM.

References: https://access.redhat.com/security/cve/cve-2013-7285

It was found that XStream could deserialize arbitrary user-supplied XML content, representing objects of any type. A remote attacker able to pass XML to XStream could use this flaw to perform a variety of attacks, including remote code execution in the context of the server running the XStream application.