Apple macOS Website cross-domain policy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Apple macOS. Impacted is an unknown function of the component Website Handler. The manipulation results in cross-domain policy. This vulnerability was named CVE-2024-23271. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apple macOS (affected version unknown). Affected is an unknown functionality of the component Website Handler. The manipulation with an unknown input leads to a cross-domain policy vulnerability. CWE is classifying the issue as CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A logic issue was addressed with improved checks. This issue is fixed in Safari 17.3, iOS 17.3 and iPadOS 17.3, macOS Sonoma 14.3, tvOS 17.3, watchOS 10.3. A malicious website may cause unexpected cross-origin behavior.

The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2024-23271 since 01/12/2024. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/03/2026).

The vulnerability scanner Nessus provides a plugin with the ID 209285 (AlmaLinux 9 : webkit2gtk3 (ALSA-2024:8180)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209285). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 7.3
CNA Vector: 🔍

ADP CISA Base Score: 7.3
ADP CISA Vector: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross-domain policy
CWE: CWE-942 / CWE-346 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
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Nessus ID: 209285
Nessus Name: AlmaLinux 9 : webkit2gtk3 (ALSA-2024:8180)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/12/2024 🔍
04/24/2024 +102 days 🔍
04/24/2024 +0 days 🔍
04/03/2026 +709 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2024-23271 (🔍)
GCVE (CVE): GCVE-0-2024-23271
GCVE (VulDB): GCVE-100-261948
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 04/24/2024 19:01
Updated: 04/03/2026 14:44
Changes: 04/24/2024 19:01 (54), 06/12/2024 13:39 (1), 10/19/2024 09:38 (3), 12/11/2024 02:20 (20), 04/03/2025 23:39 (3), 04/03/2026 14:44 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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