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

Severity: medium (CVSS 5.4 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: 2024-08-18 · updated 2026-06-17
Weakness: CWE-79

Description

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.

Affected products

CyberChimps Responsive Blocks: before 1.8.9 — fixed in 1.8.9

How to fix

Upgrade to a fixed version: CyberChimps Responsive Blocks 1.8.9. Check the vendor advisory for mitigations.

References

https://patchstack.com/database/vulnerability/responsive-block-editor-addons/wordpress-responsive-blocks-wordpress-gutenberg-blocks-plugin-1-8-8-cross-site-scripting-xss-vulnerability?_s_id=cve

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