# CVE-2026-6439

> Vulnerability · severity: **MEDIUM** (CVSS 4.4).

## 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.

## Key facts

- **CVE ID:** CVE-2026-6439
- **Published:** 2026-04-17
- **CVSS severity:** MEDIUM
- **CVSS base score:** 4.4
- **CWE codes:** CWE-79

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6439

## Citation

> AI Analytics. CVE-2026-6439. Retrieved 2026-07-17 from https://api.ai-analytics.org/cve/CVE-2026-6439. Derived from NIST NVD. Licensed CC0.

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