The Ubercart Product Keys module 6.x-1.x before 6.x-1.1 for Drupal does not properly check access for product keys, which allows remote attackers to read all unassigned product keys via certain conditions related to the uid.
https://exchange.xforce.ibmcloud.com/vulnerabilities/75720
http://www.openwall.com/lists/oss-security/2012/06/14/3
http://secunia.com/advisories/49169