Unrestricted file upload vulnerability in the Project issue tracking 4.7.0 through 5.x before 20070123, a module for Drupal, allows remote authenticated users to execute arbitrary code by attaching a file with executable or multiple extensions to a project issue.
https://exchange.xforce.ibmcloud.com/vulnerabilities/31729
http://www.vupen.com/english/advisories/2007/0312
http://www.securityfocus.com/bid/22224