CVE-2021-41165CWE-79

HTML comments vulnerability allowing to execute JavaScript code

High · published November 17, 2021

CVSS v3.1
8.2
EPSS
2%
Percentile
75.2
In the wild
Unconfirmed
What it is

CKEditor4 is an open source WYSIWYG HTML editor. In affected version a vulnerability has been discovered in the core HTML processing module and may affect all plugins used by CKEditor 4. The vulnerability allowed to inject malformed comments HTML bypassing content sanitization, which could result in executing JavaScript code. It affects all users using the CKEditor 4 at version < 4.17.0. The problem has been recognized and patched. The fix will be available in version 4.17.0.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.01573 · 75.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2021-11-17T19:15Z
EPSS history
Timeline
  • 17 NOV 19:15Z
    HTML comments vulnerability allowing to execute JavaScript code
    cvelistv5