What’s Vulnerable › Vulnerabilities

CVE-2026-6439: VideoZen <= 1.0.1 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'VideoZen available subtitles languages' Field

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-17 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• jconti VideoZen: through 1.0.1

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

Get alerted when CVE-2026-6439 or the next vulnerability affects your stack