CKEditor, a third-party JavaScript library included in Drupal core, has fixed a cross-site scripting (XSS) vulnerability. The vulnerability stemmed from the fact that it was possible to execute XSS inside CKEditor when using the image2 plugin (which Drupal 8 core also uses).
Part of security release SA-CORE-2018-003
This vulnerability affects the following application versions:
- 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 8.3.8
- Drupal 8.3.9
- Drupal 8.4.0
- Drupal 8.4.1
- Drupal 8.4.2
- Drupal 8.4.3
- Drupal 8.4.4
- Drupal 8.4.5
- Drupal 8.4.6
- Drupal 8.5.0
- Drupal 8.5.1