CVE-2021-1825

An input validation issue was addressed with improved input validation. This issue is fixed in iTunes 12.11.3 for Windows, iCloud for Windows 12.3, macOS Big Sur 11.3, Safari 14.1, watchOS 7.4, tvOS 14.5, iOS 14.5 and iPadOS 14.5. Processing maliciously crafted web content may lead to a cross site scripting attack.

• CWE-79

• https://support.apple.com/en-us/HT212317Vendor Advisory
• https://support.apple.com/en-us/HT212318Vendor Advisory
• https://support.apple.com/en-us/HT212319Vendor Advisory
• https://support.apple.com/en-us/HT212321Vendor Advisory
• https://support.apple.com/en-us/HT212323Vendor Advisory
• https://support.apple.com/en-us/HT212324Vendor Advisory
• https://support.apple.com/en-us/HT212325Vendor Advisory
• https://support.apple.com/en-us/HT212317Vendor Advisory
• https://support.apple.com/en-us/HT212318Vendor Advisory
• https://support.apple.com/en-us/HT212319Vendor Advisory
• https://support.apple.com/en-us/HT212321Vendor Advisory
• https://support.apple.com/en-us/HT212323Vendor Advisory
• https://support.apple.com/en-us/HT212324Vendor Advisory
• https://support.apple.com/en-us/HT212325Vendor Advisory

Published

Sep 8, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2021-1817A memory corruption issue was addressed with improved state …8.8
• CVE-2021-1818A logic issue was addressed with improved state management. …9.8
• CVE-2021-1820A memory initialization issue was addressed with improved me…6.5
• CVE-2021-1821A logic issue was addressed with improved state management. …6.5
• CVE-2021-1822A logic issue was addressed with improved restrictions. This…5.5
• CVE-2021-1824This issue was addressed with improved entitlements. This is…4.4
• CVE-2021-1826A logic issue was addressed with improved restrictions. This…6.1
• CVE-2021-1828A memory corruption issue was addressed with improved valida…7.1
• CVE-2021-1829A type confusion issue was addressed with improved state han…9.8
• CVE-2021-1830An out-of-bounds read was addressed with improved input vali…5.5
• CVE-2021-1831The issue was addressed with improved permissions logic. Thi…5.5
• CVE-2021-1832Copied files may not have the expected file permissions. Thi…5.5