[CRITICAL] CVE-2019-12204: Missing warning on install.php on public webroot can lead to unauthenticated admin access

PKSA-5v3s-v315-b3zz CVE-2019-12204 GHSA-cg8j-8w52-735v

Affected package: silverstripe/framework

Affected version: >=4.1.0,<4.3.5|>=4.4.0,<4.4.4

Reported by:
GitHub, FriendsOfPHP/security-advisories