CVE-2021-32809 MEDIUM

CVE-2021-32809: Arbitrary HTML injection vulnerability in ckeditor

Vendor Ckeditor
Product ckeditor4
Weakness CWE-94 · Code injection
Published August 12, 2021
Last update August 3, 2024
View on NVD All CVEs

CVSS base score

4.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

ckeditor is an open source WYSIWYG HTML editor with rich content support. A potential vulnerability has been discovered in CKEditor 4 [Clipboard](https://ckeditor.com/cke4/addon/clipboard) package. The vulnerability allowed to abuse paste functionality using malformed HTML, which could result in injecting arbitrary HTML into the editor. It affects all users using the CKEditor 4 plugins listed above at version >= 4.5.2. The problem has been recognized and patched. The fix will be available in version 4.16.2.

Key dates

02Disclosure timeline

August 12, 2021 CVE published
August 3, 2024 Record updated