The token check mechanism in Apache Struts 2.0.0 through 2.3.4 does not properly validate the token name configuration parameter, which allows remote attackers to perform cross-site request forgery (CSRF) attacks by setting the token name configuration parameter to a session attribute.
https://issues.apache.org/jira/browse/WW-3858
https://exchange.xforce.ibmcloud.com/vulnerabilities/78182
http://www.securityfocus.com/bid/55346
http://www.openwall.com/lists/oss-security/2012/09/01/5
http://www.openwall.com/lists/oss-security/2012/09/01/4