In Materialize through 1.0.0, XSS is possible via the Toast feature.
{
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:materializecss:materialize:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "1.0.0"
}
]
}