A local code execution issue exists in Apache Struts2 when processing malformed XSLT files, which could let a malicious user upload and execute arbitrary files. A patch exists as of version 2.5.22.
access.redhat.com/security/cve/cve-2012-1592
bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-1592
github.com/apache/struts
github.com/apache/struts/blob/master/core/src/main/resources/struts-default.xml#L39-L76
issues.apache.org/jira/browse/WW-5055
lists.apache.org/thread.html/r348ed455a140273c40b974f0615dee692f7c9b26c6de2118b4280ef2%40%3Cissues.struts.apache.org%3E
lists.apache.org/thread.html/r348ed455a140273c40b974f0615dee692f7c9b26c6de2118b4280ef2@%3Cissues.struts.apache.org%3E
lists.apache.org/thread.html/r593ebb2f4c95b064e6901fd273eff256c493db952bdb484395948ffc%40%3Cissues.struts.apache.org%3E
lists.apache.org/thread.html/r593ebb2f4c95b064e6901fd273eff256c493db952bdb484395948ffc@%3Cissues.struts.apache.org%3E
lists.apache.org/thread.html/r93c4e3f6cb138cd117c739714f07e47af547183ba099ba46be2b2a5b%40%3Cissues.struts.apache.org%3E
lists.apache.org/thread.html/r93c4e3f6cb138cd117c739714f07e47af547183ba099ba46be2b2a5b@%3Cissues.struts.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2012-1592
seclists.org/bugtraq/2012/Mar/110
security-tracker.debian.org/tracker/CVE-2012-1592
struts.apache.org/security/#internal-security-mechanism
www.openwall.com/lists/oss-security/2012/03/28/12