Cross-site scripting in jconti VideoZen
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-6439
- 2026-10-03 Alias added: GHSA-gc8m-6q8j-fh75
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/47bcd04b-a479-49f2-94d0-df2a7684210c?source=cve
- https://plugins.trac.wordpress.org/browser/videozen/trunk/videozen-conf.php#L69
- 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/tags/1.0.1/videozen-conf.php#L24
More jconti vulnerabilities
- TI-2026-04405 Improper signature verification in jconti Payment Gateway for Redsys & WooCommerce Lite CVSS 3.1HIGH 7.5
- TI-2025-05352 Link Shield <= 0.5.4 - Cross-Site Request Forgery to Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.1
Sources
- CVE-2026-6439 · CVE Program
- CVE-2026-6439 · NVD
- FIRST EPSS
- GHSA-gc8m-6q8j-fh75 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences