Apple tvOS Web Content cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Apple tvOS. The impacted element is an unknown function of the component Web Content Handler. Executing a manipulation can lead to cross site scripting. This vulnerability is handled as CVE-2024-40857. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple tvOS (affected version not known) and classified as critical. This vulnerability affects some unknown functionality of the component Web Content Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

This issue was addressed through improved state management. This issue is fixed in Safari 18, iOS 18 and iPadOS 18, macOS Sequoia 15, tvOS 18, visionOS 2, watchOS 11. Processing maliciously crafted web content may lead to universal cross site scripting.

The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2024-40857 since 07/10/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability scanner Nessus provides a plugin with the ID 212177 (Apple Safari 18.0 Multiple Vulnerabilities (121241)), 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 (212177). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

ADP CISA Base Score: 6.1
ADP CISA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 212177
Nessus Name: Apple Safari 18.0 Multiple Vulnerabilities (121241)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/10/2024 🔍
09/17/2024 +69 days 🔍
09/17/2024 +0 days 🔍
04/05/2026 +564 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Status: Confirmed

CVE: CVE-2024-40857 (🔍)
GCVE (CVE): GCVE-0-2024-40857
GCVE (VulDB): GCVE-100-277636

Entryinfo

Created: 09/17/2024 07:23
Updated: 04/05/2026 00:22
Changes: 09/17/2024 07:23 (54), 09/21/2024 01:24 (1), 09/26/2024 07:32 (11), 12/09/2024 17:04 (2), 03/10/2025 03:40 (3), 04/05/2026 00:22 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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