Cross-site scripting (XSS) vulnerability in the zen_breadcrumb function in template.php in the Zen theme 6.x-1.x 7.x-3.x before 7.x-3.2 and 7.x-5.x before 7.x-5.4 for Drupal allows remote authenticated users with the \administer themes\ permission to inject arbitrary web script or HTML via the breadcrumb separator field.