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CVE-2021-32808

7.6 · HIGH

ckeditor is an open source WYSIWYG HTML editor with rich content support.

Published Aug 12, 2021CWE-79EPSS 1.19%

Overview

CVE-2021-32808 is a high-severity vulnerability. It was published on August 12, 2021 and has a CVSS 3.1 base score of 7.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

ckeditor is an open source WYSIWYG HTML editor with rich content support. A vulnerability has been discovered in the clipboard Widget plugin if used alongside the undo feature. The vulnerability allows a user to abuse undo functionality using malformed widget HTML, which could result in executing JavaScript code. It affects all users using the CKEditor 4 plugins listed above at version >= 4.13.0. The problem has been recognized and patched. The fix will be available in version 4.16.2.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/ckeditor/ckeditor4/releases/tag/4.16.2GitHubgithub.com/ckeditor/ckeditor4/security/advisories/GHSA-6226-h7ff-ch6cReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UVOYN2WKDPLKCNILIGEZM236ABQASLGW/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WAGNWHFIQAVCP537KFFS2A2GDG66J7XD/Refwww.oracle.com/security-alerts/cpujan2022.htmlRefwww.oracle.com/security-alerts/cpuoct2021.htmlGitHubgithub.com/ckeditor/ckeditor4/releases/tag/4.16.2GitHubgithub.com/ckeditor/ckeditor4/security/advisories/GHSA-6226-h7ff-ch6cReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NYA354LJP47KCVJMTUO77ZCX3ZK42G3T/

How CyberStrike helps

Frequently asked questions

What is CVE-2021-32808?

CVE-2021-32808 is a high-severity vulnerability. It was published on August 12, 2021 and has a CVSS 3.1 base score of 7.6 (HIGH).

How severe is CVE-2021-32808?

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-32808?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-32808?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-32808 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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