ckeditor ckeditor CVE-2021-32808 vulnerability in Ckeditor and Other Products
Published on August 12, 2021

Cross-site scripting in ckeditor via abuse of undo functionality

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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.

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Vulnerability Analysis

CVE-2021-32808 is exploitable with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
LOW
Availability Impact:
NONE

Weakness Type

What is a XSS Vulnerability?

The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVE-2021-32808 has been classified to as a XSS vulnerability or weakness.


Products Associated with CVE-2021-32808

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-32808 are published in these products:

Ckeditor
 
Fedora Project Fedora
 
Oracle Application Express
 
Oracle Commerce Guided Search
 
Oracle Commerce Merchandising
 
Oracle Documaker
 
Oracle Financial Services Model Management Governance
 
Oracle Jd Edwards Enterpriseone Tools
 
Oracle Siebel Ui Framework
 
Oracle Webcenter Sites
 
Oracle Banking Party Management
 
Oracle Financial Services Analytical Applications Infrastructure
 
Oracle Peoplesoft Enterprise Peopletools
 
Canonical Ubuntu Linux
 

Affected Versions

ckeditor4 Version >= 4.13.0, < 4.16.2 is affected by CVE-2021-32808

Vulnerable Packages

The following package name and versions may be associated with CVE-2021-32808

Package Manager Vulnerable Package Versions Fixed In
npm plugins/widget/plugin.js >= 4.13.0, < 4.16.2 4.16.2
composer pimcore/pimcore < 10.1.1 10.1.1

Exploit Probability

EPSS
1.37%
Percentile
79.95%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.