Cross-site scripting (XSS) vulnerability in the MultiBlock module 6.x-1.x before 6.x-1.4 and 7.x-1.x before 7.x-1.1 for Drupal allows remote authenticated users with the administer blocks permission to inject arbitrary web script or HTML via the block title.
https://exchange.xforce.ibmcloud.com/vulnerabilities/74466
http://www.securityfocus.com/bid/52800
http://www.openwall.com/lists/oss-security/2012/04/07/1
http://secunia.com/advisories/48588
http://drupalcode.org/project/multiblock.git/commit/aee07d3
http://drupalcode.org/project/multiblock.git/commit/2c5177b
http://drupal.org/node/1506390