The Organic Groups (OG) module 6.x-2.x before 6.x-2.3 for Drupal does not properly restrict access, which allows remote attackers to obtain sensitive information such as private group titles via a request through the Views module.
https://exchange.xforce.ibmcloud.com/vulnerabilities/74526
http://www.securityfocus.com/bid/52799
http://www.openwall.com/lists/oss-security/2012/04/07/1
http://secunia.com/advisories/48620