CVE-2021-30744

Description: A cross-origin issue with iframe elements was addressed with improved tracking of security origins. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. Processing maliciously crafted web content may lead to universal cross site scripting.

• CWE-79

• https://support.apple.com/en-us/HT212528Vendor Advisory
• https://support.apple.com/en-us/HT212529Vendor Advisory
• https://support.apple.com/en-us/HT212532Vendor Advisory
• https://support.apple.com/en-us/HT212533Vendor Advisory
• https://support.apple.com/en-us/HT212534Vendor Advisory
• https://support.apple.com/en-us/HT212528Vendor Advisory
• https://support.apple.com/en-us/HT212529Vendor Advisory
• https://support.apple.com/en-us/HT212532Vendor Advisory
• https://support.apple.com/en-us/HT212533Vendor Advisory
• https://support.apple.com/en-us/HT212534Vendor 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-2021-30738A malicious application may be able to overwrite arbitrary f…5.5
• CVE-2021-30739A local attacker may be able to elevate their privileges. Th…7.8
• CVE-2021-30740A logic issue was addressed with improved validation. This i…7.8
• CVE-2021-30741A use after free issue was addressed with improved memory ma…7.1
• CVE-2021-30742A memory consumption issue was addressed with improved memor…7.8
• CVE-2021-30743An out-of-bounds write was addressed with improved input val…7.8
• CVE-2021-30745Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMB…
• CVE-2021-30746An out-of-bounds read was addressed with improved input vali…5.5
• CVE-2021-30748A memory corruption issue was addressed with improved state …7.8
• CVE-2021-30749Multiple memory corruption issues were addressed with improv…8.8
• CVE-2021-30750The issue was addressed with improved permissions logic. Thi…5.5
• CVE-2021-30751This issue was addressed with improved data protection. This…5.5