[MEDIUM] Form validation can be skipped in neos/form

PKSA-35x5-pv47-k4bs CVE-2021-32697 GHSA-m5vx-8chx-qvmm

Affected version: >=1.2.0,<1.3.0|>=2.0.0,<3.0.0|>=3.0.0,<4.0.0|>=4.0.0,<4.3.3|>=5.0.0,<5.0.9|>=5.1.0,<5.1.3

Reported by:
GitHub, FriendsOfPHP/security-advisories