What is CVE-2025-13849?

CVE-2025-13849 is a medium-severity vulnerability in Matiasanca Cool Yt Player, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-01-07.

How severe is CVE-2025-13849?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Matiasanca Cool Yt Player

CVE-2025-13849

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (13.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Matiasanca Cool Yt Player — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-13849?: CVE-2025-13849 is a medium-severity vulnerability in Matiasanca Cool Yt Player, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-01-07.
How severe is CVE-2025-13849?: Medium severity. CVSS v3 base score is 6.4 out of 10.