Moodle Permissions Privileges and Access Controls Vulnerability - CVE-2013-2081
Moodle through 2.1.10 2.2.x before 2.2.10 2.3.x before 2.3.7 and 2.4.x before 2.4.4 does not consider quotdon39t sendquot attributes during hub registration which allows remote hubs to obtain sensitive site information by reading form data.