[Security-news] Gutenberg - Critical - Cross site scripting - SA-CONTRIB-2021-007

[security-news at drupal.org]

View online: https://www.drupal.org/sa-contrib-2021-007

Project: Gutenberg [1]
Version: 8.x-2.x-dev8.x-1.x-dev
Date: 2021-May-12
Security risk: *Critical* 18∕25
AC:None/A:None/CI:Some/II:Some/E:Theoretical/TD:All [2]
Vulnerability: Cross site scripting

Description: 
This module provides a new UI experience for node editing using the Gutenberg
Editor library.

The module did not correctly validate access rules in certain situations
allowing anonymous users to delete blocks.

Solution: 
Install the latest version:

   * If you use the Gutenberg module 8.x-1.x, upgrade to 8.x-1.12 [3]
   * If you use the Gutenberg module 8.x-2.x, upgrade to 8.x-2.0 [4]
   * For roles other than administrator, the "Administer Gutenberg" (8.x-1.x)
     or the "Use Gutenberg" (8.x-2.x) permission must be given to view and
     delete reusable blocks.

Reported By: 
   * Stephan Zeidler [5]
   * Mariusz Andrzejewski [6]

Fixed By: 
   * Stephan Zeidler [7]
   * codebymikey [8]
   * Marco Fernandes [9]

Coordinated By: 
   * Damien McKenna [10] of the Drupal Security Team


[1] https://www.drupal.org/project/gutenberg
[2] https://www.drupal.org/security-team/risk-levels
[3] https://www.drupal.org/project/gutenberg/releases/8.x-1.12
[4] https://www.drupal.org/project/gutenberg/releases/8.x-2.0
[5] https://www.drupal.org/user/767652
[6] https://www.drupal.org/user/3517832
[7] https://www.drupal.org/user/767652
[8] https://www.drupal.org/user/3573206
[9] https://www.drupal.org/user/2127558
[10] https://www.drupal.org/u/damienmckenna