What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
Guten Post Layout versions up to 1.2.4 contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts. The vulnerability affects the site's scope, meaning injected code can impact other users and site functionality. An attacker with low-level access can execute this attack without user interaction.
What an attacker can do
03Attacker Capabilities
Inject and execute malicious JavaScript that affects other users and site functionality.
Potential impact on your site
04Site Impact
Authenticated users can inject scripts affecting other visitors and site behavior; data theft or malware distribution possible.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege user account (e.g., contributor or subscriber role).
Key dates
06Disclosure timeline
October 1, 2024
CVE published
April 8, 2026
Record updated
