A logic issue was addressed with improved validation. This issue is fixed in iOS 12.1.3, tvOS 12.1.2, Safari 12.0.3, iTunes 12.9.3 for Windows, iCloud for Windows 7.10. Processing maliciously crafted web content may lead to universal cross site scripting.
http://www.securityfocus.com/bid/106691
https://security.gentoo.org/glsa/201903-12
https://support.apple.com/HT209443
https://support.apple.com/HT209447
https://support.apple.com/HT209449
Source: MITRE
Published: 2019-03-05
Updated: 2019-03-19
Type: CWE-79
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 6.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Impact Score: 2.7
Exploitability Score: 2.8
Severity: MEDIUM