[MEDIUM] Twig Sandbox Escape by authenticated users with access to editing CMS templates when safemode is enabled.

PKSA-z91x-b3vy-fsjy CVE-2020-15247 GHSA-94vp-rmqv-5875

Affected package: october/cms

Affected version: >=1.0.319,<1.0.469

Reported by:
GitHub