SQL injection vulnerability in the Multisite Search module 6.x-2.2 for Drupal allows remote authenticated users with certain permissions to execute arbitrary SQL commands via the Site table prefix field.
https://exchange.xforce.ibmcloud.com/vulnerabilities/73898
http://www.securityfocus.com/bid/52342
http://www.openwall.com/lists/oss-security/2012/04/07/1
http://www.madirish.net/content/drupal-multisite-search-module-sql-injection-vulnerability