Vulnerability identifier: #VU82019

Vulnerability risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-38000

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WordPress
Web applications / CMS

Vendor: WordPress.ORG

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 in the post link navigation block. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

WordPress: 6.3 - 6.3.1, 6.2 - 6.2.2, 6.1 - 6.1.3, 6.0 - 6.0.5, 5.9 - 5.9.7

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External links
http://patchstack.com/database/vulnerability/wordpress/wordpress-core-6-3-2-contributor-stored-xss-in-navigation-links-block-vulnerability?_s_id=cve
http://patchstack.com/articles/wordpress-core-6-3-2-security-update-technical-advisory?_s_id=cve
http://patchstack.com/database/vulnerability/gutenberg/wordpress-gutenberg-plugin-16-8-0-contributor-stored-xss-in-navigation-links-block-vulnerability?_s_id=cve
http://wordpress.org/news/2023/10/wordpress-6-3-2-maintenance-and-security-release/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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