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CVE-2024-8288: Guten Post Layout – An Advanced Post Grid Collection for WordPress Gutenberg <= 1.2.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via align Attribute

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-10-01 · updated 2026-06-17
• Weakness: CWE-79

Description

The Guten Post Layout – An Advanced Post Grid Collection for WordPress Gutenberg plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘align’ attribute within the 'wp:guten-post-layout/post-grid' Gutenberg block in all versions up to, and including, 1.2.4 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

• adreastrian Guten Post Layout – An Advanced Post Grid Collection: through 1.2.4

References

• https://plugins.trac.wordpress.org/browser/guten-post-layout/trunk/src/blocks/post-grid/post-grid.php#L27
• https://plugins.trac.wordpress.org/browser/guten-post-layout/trunk/src/blocks/post-grid/post-grid.php#L300
• https://plugins.trac.wordpress.org/changeset/3171324/guten-post-layout/trunk/src/blocks/post-grid/post-grid.php
• https://wordpress.org/plugins/guten-post-layout/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/5d6d9852-424a-4d98-9926-e849bef99c2d?source=cve

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