In Moodle before 3.9.1, 3.8.4, 3.7.7 and 3.5.13, yui_combo needed to limit the amount of files it can load to help mitigate the risk of denial of service.
{
"severity": "High",
"cpes": [
"cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
"cpe:2.3:a:moodle:moodle:3.9.0:-:*:*:*:*:*:*"
]
}