The issue was addressed with improved validation when an iCloud Link is created. This issue is fixed in iOS 13.3 and iPadOS 13.3. Live Photo audio and video data may be shared via iCloud links even if Live Photo is disabled in the Share Sheet carousel.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8857
Reference (s):
- https://support.apple.com/en-us/HT210785
- URL: https://support.apple.com/en-us/HT210785