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.