Apple macOS up to 13.2.1 WebKit cross-domain policy

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Apple macOS up to 13.2.1. This vulnerability affects unknown code of the component WebKit. The manipulation leads to cross-domain policy. This vulnerability is uniquely identified as CVE-2023-27932. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 13.2.1 (Operating System) and classified as critical. This issue affects some unknown processing of the component WebKit. The manipulation with an unknown input leads to a cross-domain policy vulnerability. Using CWE to declare the problem leads to CWE-942. The product uses a cross-domain policy file that includes domains that should not be trusted. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

This issue was addressed with improved state management. This issue is fixed in macOS Ventura 13.3, Safari 16.4, iOS 16.4 and iPadOS 16.4, tvOS 16.4, watchOS 9.4. Processing maliciously crafted web content may bypass Same Origin Policy.

The weakness was disclosed 03/27/2023 as HT213670 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2023-27932. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/28/2025). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Processing maliciously crafted web content may bypass Same Origin Policy

Upgrading to version 13.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

This issue was addressed with improved state management.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-31658). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

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

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector: 🔍

CVSSv2info

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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: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: macOS 13.3

Timelineinfo

03/08/2023 🔍
03/27/2023 +18 days 🔍
03/27/2023 +0 days 🔍
03/29/2023 +2 days 🔍
11/28/2025 +975 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213670
Status: Confirmed

CVE: CVE-2023-27932 (🔍)
GCVE (CVE): GCVE-0-2023-27932
GCVE (VulDB): GCVE-100-224447
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 03/29/2023 15:44
Updated: 11/28/2025 13:46
Changes: 03/29/2023 15:44 (15), 03/29/2023 15:45 (2), 03/29/2023 15:48 (29), 04/19/2023 15:11 (1), 10/09/2024 16:39 (27), 01/30/2025 10:19 (11), 04/27/2025 11:58 (3), 11/28/2025 13:46 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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