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High severityNVD Advisory· Published Aug 12, 2021· Updated Aug 3, 2024

Cross-site scripting in ckeditor via abuse of undo functionality

CVE-2021-32808

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.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
ckeditor4npm
>= 4.13.0, < 4.16.24.16.2

Affected products

2

Patches

Vulnerability mechanics

References

12

News mentions

0

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