CVE-2021-32808
Cross-site scripting in ckeditor via abuse of undo functionality
- State
- Published
- Severity
- 7.6 High
- Published
- Aug 12, 2021
- Updated
- Aug 3, 2024
- Reserved
- May 12, 2021
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.6 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N | GitHub_M |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
ckeditor4ckeditor |
|
References
- https://github.com/ckeditor/ckeditor4/security/advisories/GHSA-6226-h7ff-ch6c
- https://github.com/ckeditor/ckeditor4/releases/tag/4.16.2
- FEDORA-2021-51457da891vendor-advisory
- FEDORA-2021-72176a63a8vendor-advisory
- FEDORA-2021-87578dca12vendor-advisory
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html
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