Moodle Exposure of Sensitive Information to an Unauthorized Actor Vulnerability - CVE-2014-0217
enrol/index.php in Moodle 2.6.x before 2.6.3 does not check for the moodle/course:viewhiddencourses capability before listing hidden courses which allows remote attackers to obtain sensitive name and summary information about these courses by leveraging the guest role and visiting a crafted URL.