Some administrative paths in Drupal 8.2.x before 8.2.7 did not include protection for CSRF. This would allow an attacker to disable some blocks on a site. This issue is mitigated by the fact that users would have to know the block ID.Referenceshttp://www.securitytracker.com/id/1038058https://www.drupal.org/SA-2017-001http://www.securityfocus.com/bid/96919
