Describe CVE-2015-4367.
What is CVE-2015-4367?
Cross-site scripting (XSS) vulnerability in the Simple Subscription module before 6.x-1.1 and 7.x-1.x before 7.x-1.1 for Drupal allows remote authenticated users with the "administer blocks" permission to inject arbitrary web script or HTML via vectors related to block content..