Vulnerability in CKEditor4 HTML Processing Module

ckeditor Updated 02 Oct 2025

Summary

16/03/2022

Disclosed on

N/A

Severity

No i

Fix available

Medium

Severity

5.4

CVSS Score

CVE-2022-24728: CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. Affects ckeditor across 3 version ranges.

>= 35c2f3ca5c935f3d8bde15932a712677c9bbd50f, < b68374146298b7277939e9c3208ab0518ff78d1a >= 870a561110a23435d78eda377400dca7f64d3bd3, < f7491490d73ee475b1aa4460c2449a148cb41ad1 < d158413449692d920a778503502dcb22881bc949

No fix is published. How to fix ↓

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Background

CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. It is widely used for creating and editing HTML content in various web applications. The CKEditor4 core HTML processing module is responsible for parsing and rendering HTML input. However, a vulnerability has been discovered in this module, affecting all plugins used by CKEditor4 versions prior to 4.18.0.

Vulnerability Detail

The vulnerability allows an attacker to inject malformed HTML that bypasses content sanitization. This can lead to the execution of arbitrary JavaScript code. The issue has been patched in CKEditor4 version 4.18.0. The vulnerability poses a moderate risk, with a CVSS score of 5.4. It is important to update to the latest version to mitigate the risk of exploitation.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There are currently no known workarounds for this vulnerability. It is crucial to apply the patch by upgrading to the latest version.

Conclusion

The vulnerability in the CKEditor4 HTML processing module allows for the injection of malformed HTML, bypassing content sanitization and potentially executing JavaScript code. It is crucial to upgrade to CKEditor4 version 4.18.0 or later to mitigate the risk of exploitation. For further support on vulnerability remediation, you can contact DevNack.com.

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