CVE-2024-43335 MEDIUM

CVE-2024-43335: WordPress Responsive Blocks – WordPress Gutenberg Blocks plugin <= 1.8.8 - Cross Site Scripting (XSS) vulnerability

Vendor Cyberchimps
Product Responsive Blocks – WordPress Gutenberg Blocks
Weakness CWE-79 · XSS
Published August 18, 2024
Last update April 28, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in CyberChimps Responsive Blocks – WordPress Gutenberg Blocks allows Stored XSS.This issue affects Responsive Blocks – WordPress Gutenberg Blocks: from n/a through 1.8.8.

Explanation of Vulnerability in Simple Terms

02Summary

The Responsive Blocks plugin for WordPress contains a stored cross-site scripting (XSS) vulnerability in versions up to 1.8.8. An authenticated user with low privileges can inject malicious scripts into block content. When other users view the affected page, the script executes in their browser, potentially allowing the attacker to steal session tokens, modify page content, or perform actions on their behalf. The vulnerability requires user interaction to trigger.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute when other users view the affected page, stealing their session data or performing actions as them.

Potential impact on your site

04Site Impact

Authenticated users can inject persistent malicious code into your site that affects all visitors, compromising user accounts and site integrity.

Conditions required to exploit

05Prerequisites

Attacker must be logged in with at least low-level WordPress user privileges and trick a user into viewing a page containing the malicious block.

Key dates

06Disclosure timeline

August 18, 2024 CVE published
April 28, 2026 Record updated

Related vulnerabilities

08Related CVE