Moodle Improper Input Validation Vulnerability - CVE-2013-2083
The MoodleQuickForm class in lib/formslib.php in 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 properly handle a certain array-element syntax which allows remote attackers to bypass intended form-data filtering via a crafted request.