In SilverStripe through 4.6.0-rc1, GraphQL doesn't honour MFA (multi-factor authentication) when using basic authentication.
{
"cpes": [
"cpe:2.3:a:silverstripe:silverstripe:*:*:*:*:*:*:*:*",
"cpe:2.3:a:silverstripe:silverstripe:4.6.0:rc1:*:*:*:*:*:*"
],
"severity": "Medium"
}