What’s Vulnerable › Vulnerabilities

CVE-2025-12025: YouTube Subscribe <= 3.0.0 - Authenticated (Admin+) Stored Cross-Site Scripting via Title and Channel ID

• Severity: medium (CVSS 4.4 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: 2025-11-25 · updated 2026-10-18
• Weakness: CWE-79

Description

The YouTube Subscribe plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 3.0.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Affected products

• mahabubs YouTube Subscribe: through 3.0.0

References

• https://plugins.trac.wordpress.org/browser/easy-youtube-subscribe/tags/3.0.0/includes/sm-youtube-subscription-shortcode.php#L242
• https://plugins.trac.wordpress.org/browser/easy-youtube-subscribe/tags/3.0.0/includes/sm-youtube-subscription-shortcode.php#L246
• https://wordpress.org/plugins/easy-youtube-subscribe/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/9996cdc7-4d97-4b27-b697-09bbdbcd865d?source=cve

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