CVE-2023-5063: Stefanoai Widget Responsive For YouTube

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

The Widget Responsive for Youtube plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'youtube' shortcode in versions up to, and including, 1.6.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Stefanoai Widget Responsive For YouTube: up to and including 1.6.1

Published 2023-09-20. Last modified 2026-06-17.