Moodle Exposure of Sensitive Information to an Unauthorized Actor Vulnerability - CVE-2015-3180
lib/navigationlib.php in Moodle through 2.5.9 2.6.x before 2.6.11 2.7.x before 2.7.8 and 2.8.x before 2.8.6 allows remote authenticated users to obtain sensitive course-structure information by leveraging access to a student account with a suspended enrolment.