Unspecified vulnerability in WeBWorK 2.1.3 and 2.2-pre1 allows remote privileged attackers to execute arbitrary commands as the web server via unknown attack vectors.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24322
http://www.vupen.com/english/advisories/2006/0319
http://www.securityfocus.com/bid/16371
http://secunia.com/advisories/18594
http://devel.webwork.rochester.edu/twiki/bin/view/Webwork/WeBWorKRelease2pt1pt4