It was possible for a student to view their quiz grade before it had been released, using a quiz web service. Moodle 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8, 3.5 to 3.5.17 and earlier unsupported versions are affected
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32473.json"