What’s Vulnerable › Vulnerabilities

CVE-2026-85414: Gallery : FooGallery <= 3.3.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'custom_settings' Shortcode Attribute

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-05 · updated 2026-09-08
• Weakness: CWE-79

Description

The Gallery : FooGallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'custom_settings' Shortcode Attribute in all versions up to, and including, 3.3.2 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.

Affected products

• fooplugins Gallery : FooGallery: through 3.3.2

References

• https://plugins.trac.wordpress.org/browser/foogallery/tags/3.2.6/assets/js/foogallery.4cc6f51b.js#L6599
• https://plugins.trac.wordpress.org/browser/foogallery/tags/3.2.6/assets/js/foogallery.4cc6f51b.js#L7367
• https://plugins.trac.wordpress.org/browser/foogallery/tags/3.2.6/assets/js/foogallery.4cc6f51b.js#L8048
• https://plugins.trac.wordpress.org/browser/foogallery/tags/3.2.6/includes/class-gallery-advanced-settings.php#L138
• https://plugins.trac.wordpress.org/browser/foogallery/tags/3.2.6/includes/functions.php#L301
• https://plugins.trac.wordpress.org/browser/foogallery/trunk/assets/js/foogallery.4cc6f51b.js#L6599
• https://plugins.trac.wordpress.org/browser/foogallery/trunk/assets/js/foogallery.4cc6f51b.js#L7367
• https://plugins.trac.wordpress.org/browser/foogallery/trunk/assets/js/foogallery.4cc6f51b.js#L8048
• https://plugins.trac.wordpress.org/browser/foogallery/trunk/includes/class-gallery-advanced-settings.php#L138
• https://plugins.trac.wordpress.org/browser/foogallery/trunk/includes/functions.php#L301
• https://plugins.trac.wordpress.org/changeset/3680965/foogallery
• https://www.wordfence.com/threat-intel/vulnerabilities/id/859e78cd-3dfe-41b9-86dd-6f9db319cad8?source=cve

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