CVE-2024-24816: ckeditor XSS — Fix

Description

CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability vulnerability has been discovered in versions prior to 4.24.0-lts in samples that use the `preview` feature. All integrators that use these samples in the production code can be affected. The vulnerability allows an attacker to execute JavaScript code by abusing the misconfigured preview feature. It affects all users using the CKEditor 4 at version < 4.24.0-lts with affected samples used in a production environment. A fix is available in version 4.24.0-lts.

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CVSS v3.1 Score

6.1

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
ckeditor	ckeditor	4.0 — 4.24.0

References

Advisories & Patches

https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-mw2c-vx6j-mg76 https://github.com/ckeditor/ckeditor4/commit/8ed1a3c93d0ae5f49f4ecff5738ab8a2972194cb https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-mw2c-vx6j-mg76

Other References

https://ckeditor.com/cke4/addon/preview https://ckeditor.com/cke4/addon/preview

Frequently Asked Questions

What is CVE-2024-24816? +

CKEditor4 is an open source what-you-see-is-what-you-get HTML editor. A cross-site scripting vulnerability vulnerability has been discovered in versions prior to 4.24.0-lts in samples that use the `preview` feature. All integrators that use these samples in the production code can be affected. The vulnerability allows an attacker to execute JavaScript code by abusing the misconfigured preview feature. It affects all users using the CKEditor 4 at version < 4.24.0-lts with affected samples used in a production environment. A fix is available in version 4.24.0-lts. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2024-24816? +

CVE-2024-24816 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-24816? +

CVE-2024-24816 affects products from ckeditor, specifically: ckeditor. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-24816? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-24816