CVE-2026-28343

Published March 5th, 2026

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CVSS v3

6.4

MEDIUM

CVSS v2

N/A

Affected

PROJECT

Description

CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. Starting in version 29.0.0 and prior to version 47.6.0, a cross-site scripting (XSS) vulnerability has been discovered in the General HTML Support feature. This vulnerability could be triggered by inserting specially crafted markup, leading to unauthorized JavaScript code execution, if the editor instance used an unsafe General HTML Support configuration. This issue has been patched in version 47.6.0.

ckeditor/ckeditor5

Powerful rich text editor framework with a modular architecture, modern integrations, and features like collaborative editing.

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