What’s Vulnerable › Vulnerabilities

CVE-2025-4217: WP YouTube Video Optimizer <= 1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-21 · updated 2026-06-17
• Weakness: CWE-79

Description

The WP YouTube Video Optimizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'ib_youtube' shortcode in all versions up to, and including, 1.2 due to insufficient input sanitization and output escaping on user supplied attributes. 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

• measuremarketing WP YouTube Video Optimizer: through 1.2

References

• https://plugins.trac.wordpress.org/browser/wp-youtube-video-optimizer/trunk/wp-youtube-video-optimizer.php#L20
• https://www.wordfence.com/threat-intel/vulnerabilities/id/71a933ef-f49d-4520-90d5-9957f72d7452?source=cve

Get alerted when CVE-2025-4217 or the next vulnerability affects your stack