CVE-2021-32808 Cross-site scripting in ckeditor via abuse of undo functionality

2021-08-1216:25:10

CWE-79

GitHub_M

www.cve.org

7.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

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

6.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

50.8%

JSON

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.

CNA Affected

[
  {
    "product": "ckeditor4",
    "vendor": "ckeditor",
    "versions": [
      {
        "status": "affected",
        "version": ">= 4.13.0, < 4.16.2"
      }
    ]
  }
]