CVE-2024-2255: XSS
First published: Wed Mar 20 2024(Updated: )
The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's widgets in all versions up to, and including, 4.5.2 due to insufficient input sanitization and output escaping on user supplied attributes such as listStyle. This makes it possible for authenticated attackers with contributor-level and above permissions 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 |
|---|---|---|
| Essential Blocks | <4.5.3 | |
| WPDeveloper Essential Blocks for Gutenberg | <=4.5.2 |
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Reference Links
- https://www.wordfence.com/threat-intel/vulnerabilities/id/cfcd59ae-085f-47d2-a4d2-2d1239f035d2?source=cve
- https://plugins.trac.wordpress.org/browser/essential-blocks/tags/4.5.2/blocks/TableOfContents.php#L120
- https://plugins.trac.wordpress.org/changeset/3053199/essential-blocks/trunk/blocks/TableOfContents.php
Frequently Asked Questions
What is the severity of CVE-2024-2255?
CVE-2024-2255 is classified as a high severity vulnerability due to its potential for Stored Cross-Site Scripting.
How do I fix CVE-2024-2255?
To fix CVE-2024-2255, update the Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin to version 4.5.3 or later.
Who is affected by CVE-2024-2255?
Any user of the Essential Blocks plugin for WordPress versions up to and including 4.5.2 is affected by CVE-2024-2255.
What type of vulnerability is CVE-2024-2255?
CVE-2024-2255 is a Stored Cross-Site Scripting (XSS) vulnerability that arises from insufficient input sanitization.
Can CVE-2024-2255 lead to further attacks?
Yes, successful exploitation of CVE-2024-2255 may allow an attacker to execute malicious scripts in the context of user browsers.
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