Cross-site scripting (XSS) vulnerability in the Date module before 7.x-2.8 for Drupal allows remote authenticated users with the permission to create a date field to inject arbitrary web script or HTML via the date field title.
https://www.drupal.org/node/2312609
https://www.drupal.org/node/2311887
http://www.securityfocus.com/bid/68974