Moodle 3.x has XSS in the contact form on the "non-respondents" page in non-anonymous feedback.
https://moodle.org/mod/forum/discuss.php?d=358585
http://www.securityfocus.com/bid/100867
Source: Mitre, NVD
Published: 2017-09-18
Updated: 2017-09-21
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N