CVE-2024-13803: Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates <= 5.2.3 - Authenticated (Contributor+) Stored Cross-Site Scripting
First published: Wed Feb 26 2025(Updated: )
The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-marker’ parameter in all versions up to, and including, 5.2.3 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.
Credit: security@wordfence.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| WPDeveloper Essential Blocks for Gutenberg | <=5.2.3 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-13803?
The severity of CVE-2024-13803 is considered high due to the risk of stored cross-site scripting attacks.
How do I fix CVE-2024-13803?
To fix CVE-2024-13803, update the Essential Blocks plugin to version 5.2.4 or later.
Which versions are affected by CVE-2024-13803?
CVE-2024-13803 affects all versions of the Essential Blocks plugin up to and including version 5.2.3.
What type of vulnerability is CVE-2024-13803?
CVE-2024-13803 is a stored cross-site scripting vulnerability caused by insufficient input sanitization.
Who is the vendor associated with CVE-2024-13803?
The vendor associated with CVE-2024-13803 is WPDeveloper, the developer of Essential Blocks.
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