Cross-site scripting in Apple iOS and iPadOS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Partial Red Hat: 3 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | iOS and iPadOS | before 14.6 | 14.6 | Patch available | CNA |
| Apple | macOS | before 11.4 | 11.4 | Patch available | CNA |
| Apple | macOS | before 14.6 | 14.6 | Patch available | CNA |
| Apple | macOS | before 7.5 | 7.5 | Patch available | CNA |
| Apple | macOS | before 14.1 | 14.1 | Patch available | CNA |
- iOS and iPadOS VendorApple Affected before 14.6 Fixed in 14.6 Patch available CNA
- macOS VendorApple Affected before 11.4 Fixed in 11.4 Patch available CNA
- macOS VendorApple Affected before 14.6 Fixed in 14.6 Patch available CNA
- macOS VendorApple Affected before 7.5 Fixed in 7.5 Patch available CNA
- macOS VendorApple Affected before 14.1 Fixed in 14.1 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* | before 14.1.1 | Vulnerable | Apple |
| cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* | before 14.6 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 14.6 | Vulnerable | Apple |
| cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* | 11.0.1 to before 11.4 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 14.6 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 7.5 | Vulnerable | Apple |
- cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 14.1.1 Vulnerable ·Apple
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 14.6 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 14.6 Vulnerable ·Apple
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 11.0.1 to before 11.4 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 14.6 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 7.5 Vulnerable ·Apple
Remediation
- Fix · CNA iOS and iPadOS (Apple) Fixed in 14.6
- Fix · CNA macOS (Apple) Fixed in 11.4
- Fix · CNA macOS (Apple) Fixed in 14.6
- Fix · CNA macOS (Apple) Fixed in 7.5
- Fix · CNA macOS (Apple) Fixed in 14.1
Red Hat 2 advisories
- RHSA-2025:10364 Released 2025-07-07 · Red Hat rating Importantwebkitgtk4 security update
- Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4-2.48.3-2.el7_9, webkitgtk4-devel-2.48.3-2.el7_9, webkitgtk4-jsc-2.48.3-2.el7_9 +1
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-devel-2.48.3-2.el7_9, webkitgtk4-doc-2.48.3-2.el7_9, webkitgtk4-jsc-devel-2.48.3-2.el7_9
- RHSA-2021:4381 Released 2021-11-09 · Red Hat rating ModerateGNOME security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) LibRaw-devel-0.19.5-3.el8
- Red Hat Enterprise Linux AppStream (v. 8) LibRaw-0.19.5-3.el8, gnome-autoar-0.2.3-2.el8, webkit2gtk3-2.32.3-2.el8 +3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 11.4
70 records Highest priority Priority CRITICAL 1 CRITICAL, 7 MEDIUM, 62 LOW
Other records, highest priority first
- TI-2021-11096 Missing authorization in Apple macOSPriority CRITICAL 93
- TI-2021-11104 Apple macOS: An attacker in a privileged network position may be able to leak sensitive…Priority MEDIUM 50
- TI-2021-11062 Apple macOS: A remote attacker may be able to cause unexpected application termination or…Priority MEDIUM 48
- Release ·
Apple iOS and iPadOS 14.6
46 records Highest priority Priority MEDIUM 4 MEDIUM, 42 LOW
Other records, highest priority first
- TI-2021-11115 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
- TI-2021-11091 Buffer overflow in Apple iOS and iPadOSPriority MEDIUM 42
- TI-2021-11128 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
Show 3 more groups
- Release ·
Apple macOS 14.6
30 records Highest priority Priority CRITICAL 2 CRITICAL, 4 MEDIUM, 24 LOW
Other records, highest priority first
- TI-2021-11050 Out-of-bounds write in Apple macOSPriority CRITICAL 97
- TI-2021-11048 Integer overflow in Apple macOSPriority CRITICAL 97
- TI-2021-11115 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
- Release ·
Apple macOS 7.5
29 records Highest priority Priority MEDIUM 4 MEDIUM, 25 LOW
Other records, highest priority first
- TI-2021-11115 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
- TI-2021-11091 Buffer overflow in Apple iOS and iPadOSPriority MEDIUM 42
- TI-2021-11128 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
- Release ·
Apple macOS 14.1
11 records Highest priority Priority CRITICAL 1 CRITICAL, 5 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2021-11048 Integer overflow in Apple macOSPriority CRITICAL 97
- TI-2021-11174 Apple iOS: Processing maliciously crafted web content may lead to code executionPriority MEDIUM 42
- TI-2021-11172 Use after free in Apple iOSPriority MEDIUM 42
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:4381 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2025:10364 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2025:10364 |
Not affected: 4 products
- Red Hat CodeReady Linux Builder (v. 8)
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux AppStream (v. 8)
- Red Hat Enterprise Linux BaseOS (v. 8)
Timeline
- 2026-10-02 Threatist record created from CVE-2021-30744
- 2026-10-03 Alias added: GHSA-6gqw-9w99-v9gq
References
More Apple Ipados vulnerabilities
- TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2022-06854 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-30744 · CVE Program
- CVE-2021-30744 · NVD
- FIRST EPSS
- GHSA-6gqw-9w99-v9gq · GitHub Advisory Database · CC BY 4.0
- CVE-2021-30744 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences