[MEDIUM] CVE-2020-6165: Limited queries break CanViewPermissionChecker

PKSA-rgqh-7gmx-d8s5 CVE-2020-6165 GHSA-589q-75r3-mfq4

Affected package: silverstripe/graphql

Affected version: >=3.2.0,<3.2.4

Reported by:
GitHub, FriendsOfPHP/security-advisories