Cross-site scripting (XSS) vulnerability in the MAYO theme 7.x-1.x before 7.x-1.3 for Drupal allows remote authenticated users with the "administer themes" permission to inject arbitrary web script or HTML via vectors related to header background setting.
https://www.drupal.org/node/2193987
https://exchange.xforce.ibmcloud.com/vulnerabilities/91154
https://drupal.org/node/2194135
http://www.securityfocus.com/bid/65523