A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to universal cross site scripting.Referenceshttps://support.apple.com/HT209599https://support.apple.com/HT209601https://support.apple.com/HT209603https://support.apple.com/HT209604https://support.apple.com/HT209605
