CVE 2022-22589
A validation issue was addressed with improved input sanitization. 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. Processing a maliciously crafted mail message may lead to running arbitrary javascript.
See the 
CVE page on Mitre.org
for more details.
