[Security-news] Webform - Moderately critical - Cross Site Scripting - SA-CONTRIB-2021-026

[security-news at drupal.org]

View online: https://www.drupal.org/sa-contrib-2021-026

Project: Webform [1]
Date: 2021-August-25
Security risk: *Moderately critical* 12∕25
AC:Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:Uncommon [2]
Vulnerability: Cross Site Scripting

Description: 
The Webform module  uses the CKEditor [3], library for WYSIWYG editing.
CKEditor has released a security update that impacts Webform [4].

An attacker that can create or edit content (even without access to CKEditor
themselves) may be able to exploit one or more Cross-Site Scripting (XSS)
vulnerabilities to target users with access to the WYSIWYG CKEditor,
including site admins with privileged access.

For more information, see CKEditor's announcement of the release [5].

Solution: 
Install the latest version:

   * If you use the Webform module module for Drupal 8/9 upgrade to Webform
     8.x-5.28 [6] or Webform 6.0.5 [7]

If you are using a previous release of the Webform module you can immediately
do one of several options.

   1) Update Drupal
   2) If you are using Composer, run drush webform:libraries:composer >
      DRUPAL_ROOT/composer.libraries.json and run composer update
   3) If you are using Drush, run drush webform:libraries:update

Learn more about updating Webform libraries. [8]

Reported By: 
   * Lee Rowlands [9] of the Drupal Security Team

Fixed By: 
   * Jacob Rockowitz [10]

Coordinated By: 
   * Greg Knaddison [11] of the Drupal Security Team
   * xjm [12] of the Drupal Security Team


[1] https://www.drupal.org/project/webform
[2] https://www.drupal.org/security-team/risk-levels
[3] https://github.com/ckeditor/ckeditor4
[4]
https://ckeditor.com/blog/ckeditor-4.16.2-with-browser-improvements-and-security-fixes/
[5]
https://ckeditor.com/blog/ckeditor-4.16.2-with-browser-improvements-and-security-fixes/
[6] https://www.drupal.org/project/webform/releases/8.x-5.28
[7] https://www.drupal.org/project/webform/releases/6.0.5
[8] https://www.drupal.org/docs/contributed-modules/webform/webform-libraries
[9] https://www.drupal.org/user/395439
[10] https://www.drupal.org/user/371407
[11] https://www.drupal.org/user/36762
[12] https://www.drupal.org/user/65776