CVE-2026-6439

Description

The VideoZen plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 1.0.1. This is due to insufficient input sanitization and output escaping in the videozen_conf() function. The 'lang' POST parameter is stored directly via update_option() without any sanitization, and later echoed inside a <textarea> element without applying esc_textarea() or any equivalent escaping function. This makes it possible for authenticated attackers with Administrator-level access and above to inject arbitrary web scripts into the plugin settings page that will execute whenever any user accesses that page.

References

• https://plugins.trac.wordpress.org/browser/videozen/tags/1.0.1/videozen-conf.php#L24
• https://plugins.trac.wordpress.org/browser/videozen/tags/1.0.1/videozen-conf.php#L69
• https://plugins.trac.wordpress.org/browser/videozen/trunk/videozen-conf.php#L24
• https://plugins.trac.wordpress.org/browser/videozen/trunk/videozen-conf.php#L69
• https://www.wordfence.com/threat-intel/vulnerabilities/id/47bcd04b-a479-49f2-94d0-df2a7684210c?source=cve