CVE-2025-13849: Matiasanca Cool Yt Player

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The Cool YT Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'videoid' parameter in all versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Matiasanca Cool Yt Player: up to and including 1.0

Published 2026-01-07. Last modified 2026-06-17.