CVE-2021-30744

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published
Sep 8, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-307465.5An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 CataCVE-2021-307487.8A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. An application CVE-2021-307498.8Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, CVE-2021-307505.5The issue was addressed with improved permissions logic. This issue is fixed in macOS Big Sur 11.3. A malicious application may be able to aCVE-2021-307515.5This issue was addressed with improved data protection. This issue is fixed in macOS Big Sur 11.4. A malicious application may be able to byCVE-2021-307527.8Processing a maliciously crafted image may lead to arbitrary code execution. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS CVE-2021-307535.5Processing a maliciously crafted font may result in the disclosure of process memory. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, CVE-2021-307556.5Processing a maliciously crafted font may result in the disclosure of process memory. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, CVE-2021-307565.5A local attacker may be able to view Now Playing information from the lock screen. This issue is fixed in macOS Big Sur 11.4, iOS 14.6 and iCVE-2021-307575.5This issue was addressed by enabling hardened runtime. This issue is fixed in iMovie 10.2.4. Entitlements and privacy permissions granted toCVE-2021-307588.8A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchCVE-2021-307597.8A stack overflow was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7,
CVE-2021-30744: Medium severity, CVSS 6.1 | Vulnix