CVE-2025-11811

The Simple Youtube Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'embed_youtube' shortcode in all versions up to, and including, 1.1.3. This is due to insufficient input sanitization and output escaping on the 'id' attribute. 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.
CVE-2025-11811CVSS 6.4Web

CVE-2025-11811

The Simple Youtube Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'embed_youtube' shortcode in all versions up to, and including, 1.1.3. This is due to insufficient input sanitization and output escaping on the 'id' attribute. 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.

CVSS
6.4 MEDIUM
EPSS
12.11%
Known exploited
not in KEV
Product
-

What is known

The Simple Youtube Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'embed_youtube' shortcode in all versions up to, and including, 1.1.3. This is due to insufficient input sanitization and output escaping on the 'id' attribute. 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.

Sources

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