Multiple cross-site request forgery (CSRF) vulnerabilities in the User Import module 6.x-4.x before 6.x-4.4 and 7.x-2.x before 7.x-2.3 for Drupal allow remote attackers to hijack the authentication of administrators for requests that (1) continue or (2) delete an ongoing import via unspecified vectors.
https://www.drupal.org/node/2463949
https://www.drupal.org/node/2463943
https://www.drupal.org/node/2463941