Users with permission to post comments were able to view content and comments they do not have access to, and are also able to add comments to this content.
This vulnerability is mitigated by the fact that the comment system must be enabled and the attacker must have permission to post comments.
Part of security release SA-CORE-2018-001
This vulnerability affects the following application versions:
- Drupal 8.0.0
- Drupal 8.0.1
- Drupal 8.0.2
- Drupal 8.0.3
- Drupal 8.0.4
- Drupal 8.0.5
- Drupal 8.0.6
- Drupal 8.1.0
- Drupal 8.1.1
- Drupal 8.1.2
- Drupal 8.1.3
- Drupal 8.1.4
- Drupal 8.1.5
- Drupal 8.1.6
- Drupal 8.1.7
- Drupal 8.1.8
- Drupal 8.1.9
- Drupal 8.1.10
- Drupal 8.2.0
- Drupal 8.2.1
- Drupal 8.2.2
- Drupal 8.2.3
- Drupal 8.2.4
- Drupal 8.2.5
- Drupal 8.2.6
- Drupal 8.2.7
- Drupal 8.2.8
- Drupal 8.3.0
- Drupal 8.3.1
- Drupal 8.3.2
- Drupal 8.3.3
- Drupal 8.3.4
- Drupal 8.3.5
- Drupal 8.3.6
- Drupal 8.3.7
- Drupal 8.4.0
- Drupal 8.4.1
- Drupal 8.4.2
- Drupal 8.4.3
- Drupal 8.4.4