What is CVE-2026-3299?

CVE-2026-3299 is a medium-severity vulnerability in Futtta Wp Youtube Lyte, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-16.

How severe is CVE-2026-3299?

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

XSS in Futtta Wp Youtube Lyte

CVE-2026-3299

The WP YouTube Lyte plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'lyte' shortcode in all versions up to, and including, 1.7.29 due to insufficient input sanitization and output escaping on user supplie…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (1.9th 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

Futtta Wp Youtube Lyte — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.wordfence.com/threat-intel/vulnerabilities/id/de09d051-d124-4397-bd1c-b193a…
plugins.trac.wordpress.org/changeset/3482595/wp-youtube-lyte

Frequently asked questions

What is CVE-2026-3299?: CVE-2026-3299 is a medium-severity vulnerability in Futtta Wp Youtube Lyte, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-04-16.
How severe is CVE-2026-3299?: Medium severity. CVSS v3 base score is 6.4 out of 10.