In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
https://moodle.org/mod/forum/discuss.php?d=358586
http://www.securityfocus.com/bid/100848
Source: Mitre, NVD
Published: 2017-09-18
Updated: 2017-09-28
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N
Severity: Medium
Base Score: 4.3
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N