What’s Vulnerable › Vulnerabilities

CVE-2024-6296: Stackable – Page Builder Gutenberg Blocks <= 3.13.1 - Authenticated (Contributor+) DOM-Based Stored Cross-Site Scripting

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-28 · updated 2026-06-17
• Weakness: CWE-79

Description

The Stackable – Page Builder Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-caption’ parameter in all versions up to, and including, 3.13.1 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

• bfintal Stackable – Page Builder Gutenberg Blocks: through 3.13.1

References

• https://plugins.trac.wordpress.org/browser/stackable-ultimate-gutenberg-blocks/trunk/dist/frontend_image_lightbox.js
• https://plugins.trac.wordpress.org/changeset/3108514/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/e55742de-9eaf-48e4-8d5d-ea980dfa17cf?source=cve
• https://plugins.trac.wordpress.org/browser/stackable-ultimate-gutenberg-blocks/trunk/dist/frontend_image_lightbox.js
• https://plugins.trac.wordpress.org/changeset/3108514/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/e55742de-9eaf-48e4-8d5d-ea980dfa17cf?source=cve

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