#VU81178 Security features bypass in WPE WebKit and WebKitGTK+ - CVE-2023-40451

Vulnerability identifier: #VU81178

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-40451

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

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

Vendor: WebKitGTK

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper input validation when enforcing iframe sandboxing in WebKit. A remote attacker can trick the victim to visit a specially crafted website and execute arbitrary code.

Mitigation
Install update from vendor's website.

Vulnerable software versions

WPE WebKit: before 2.40.5

WebKitGTK+: before 2.40.5

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External links
https://support.apple.com/en-us/HT213941
https://webkitgtk.org/security/WSA-2023-0009.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.