SB2023102540 - Stored cross-site scripting in Add Custom Body Class plugin for WordPress

Description

This security bulletin contains information about 1 security vulnerability.

1) Stored cross-site scripting (CVE-ID: CVE-2023-5205)

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 "add_custom_body_class" value. 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.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/9841b57b-b869-4282-8781-60538f6f269f?source=cve
• https://plugins.trac.wordpress.org/browser/add-custom-body-class/trunk/add-custom-body-class.php#L32