CVE-2021-32808CWE-79

Cross-site scripting in ckeditor via abuse of undo functionality

High · published August 12, 2021

CVSS v3.1
7.6
EPSS
1%
Percentile
67.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.01192 · 67.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2021-08-12T16:25Z
EPSS history
Timeline
  • 12 AUG 16:25Z
    Cross-site scripting in ckeditor via abuse of undo functionality
    cvelistv5