The Views module before 6.x-2.18, 6.x-3.x before 6.x-3.2, and 7.x-3.x before 7.x-3.10 for Drupal does not properly restrict access to the default views configurations, which allows remote authenticated users to obtain sensitive information via unspecified vectors.
https://www.drupal.org/node/2424403
https://www.drupal.org/node/2424103
https://www.drupal.org/node/2424101