In Moodle before 3.9.1, 3.8.4 and 3.7.7, the filter in the admin task log required extra sanitizing to prevent a reflected XSS risk.
{ "cpes": [ "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*", "cpe:2.3:a:moodle:moodle:3.9.0:-:*:*:*:*:*:*" ], "severity": "Medium" }