Recursive rendering of Mustache template helpers containing user input could, in some cases, result in an XSS risk or a page failing to load.
[
{
"product": "moodle",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "4.0 to 4.0.3, 3.11 to 3.11.9, 3.9 to 3.9.16 and earlier unsupported versions"
}
]
}
]