Multiple SQL injection vulnerabilities in CRM/Core/Page/AJAX/Location.php in CiviCRM before 4.2.12, 4.3.x before 4.3.7, and 4.4.x before 4.4.beta4 allow remote attackers to execute arbitrary SQL commands via the value parameter to (1) ajax/jqState or (2) ajax/jqcounty.

The Quick Search API in CiviCRM 4.2.0 through 4.2.9 and 4.3.0 through 4.3.3 allows remote authenticated users to bypass the validation layer and conduct SQL injection attacks via a direct request to the "second layer" of the API, related to contact.getquick.

CiviCRM 2.0.0 through 4.2.9 and 4.3.0 through 4.3.3 does not properly enforce role-based access control (RBAC) restrictions for default custom searches, which allows remote authenticated users with the "access CiviCRM" permission to bypass intended access restrictions, as demonstrated by accessing custom contribution data without having the "access CiviContribute" permission.