The Quiz module 6.x-4.x before 6.x-4.5 for Drupal allows remote authenticated users with the "view any quiz results" or "view results for own quiz" permission to delete arbitrary results via the delete option.
The default views in the Quiz module 6.x-4.x before 6.x-4.5 for Drupal allows remote attackers to obtain sensitive quiz results via unspecified vectors.