It was possible for a student to view their quiz grade before it had been released, using a quiz web service.
[
{
"product": "moodle",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "3.11 to 3.11.2, 3.10 to 3.10.6, 3.9 to 3.9.9 and earlier unsupported versions"
}
]
}
]