A cross-origin issue in the IndexDB API was addressed with improved input validation. This issue is fixed in iOS 15.3 and iPadOS 15.3, watchOS 8.4, tvOS 15.3, Safari 15.3, macOS Monterey 12.2. A website may be able to track sensitive user information.
https://www.tenable.com/cyber-exposure/tenable-2022-threat-landscape-report
https://support.apple.com/en-us/103177
https://support.apple.com/en-us/103176
https://support.apple.com/en-us/103175
https://support.apple.com/en-us/103172
https://support.apple.com/en-us/102848
https://support.apple.com/en-us/HT213059
https://support.apple.com/en-us/HT213058
https://support.apple.com/en-us/HT213057