The issue was addressed with improved permissions logic. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with system privileges.
https://support.apple.com/kb/HT212327
https://support.apple.com/kb/HT212326
https://support.apple.com/HT210921
https://support.apple.com/HT210920
https://support.apple.com/HT210919