Vulnerability identifier: #VU80603

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-40397

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WebKitGTK+
Server applications / Frameworks for developing and running applications
WPE WebKit
Server applications / Frameworks for developing and running applications

Vendor: WebKitGTK

Description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code on the target system.

The vulnerability exists due to improper input validation. A remote attacker can trick the victim to visit a specially crafted webpage and execute arbitrary JavaScript code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.40.0 - 2.40.4

WPE WebKit: 2.40.0 - 2.40.4

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External links
http://support.apple.com/en-us/HT213843
http://webkitgtk.org/security/WSA-2023-0008.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.