Vulnerability identifier: #VU79807

Vulnerability risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-40068

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Advanced Custom Fields
Web applications / Modules and components for CMS
Advanced Custom Fields Pro
Web applications / Modules and components for CMS

Vendor: Elliot Condon

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. The vulnerability allows a remote authenticated attacker to execute an arbitrary script on the web browser of the user who is logging in to the product with the administrative privilege.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Advanced Custom Fields: 6.1.0 - 6.1.7

Advanced Custom Fields Pro: 6.1.0 - 6.1.7

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External links
http://wordpress.org/plugins/advanced-custom-fields/
http://www.advancedcustomfields.com/
http://jvn.jp/en/jp/JVN98946408/
http://www.advancedcustomfields.com/blog/acf-6-1-8/

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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.