Vulnerability identifier: #VU68696

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: N/A

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 user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the RSS Block. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

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 updates from vendor's website.

Vulnerable software versions

WordPress: 6.0 - 6.0.2, 5.9 - 5.9.4, 5.8 - 5.8.5, 5.7 - 5.7.7, 5.6 - 5.6.9, 5.5 - 5.5.10, 5.4 - 5.4.11, 5.3 - 5.3.13, 5.2 - 5.2.16, 5.1 - 5.1.14, 5.0 - 5.0.17, 4.9 - 4.9.21, 4.8 - 4.8.20, 4.7 - 4.7.24, 4.6 - 4.6.24, 4.5 - 4.5.27, 4.4 - 4.4.28, 4.3 - 4.3.29, 4.2 - 4.2.33, 4.1 - 4.1.36, 4.0 - 4.0.36, 3.9 - 3.9.37, 3.8 - 3.8.39, 3.7 - 3.7.39

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External links
http://wordpress.org/news/2022/10/wordpress-6-0-3-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.