Access bypass vulnerability in Drupal Core allows JSON:API when JSON:API is in read/write mode. Only sites that have the read_only set to FALSE under jsonapi.settings config are vulnerable. This issue affects: Drupal Drupal Core 8.8.x versions prior to 8.8.8; 8.9.x versions prior to 8.9.1; 9.0.x versions prior to 9.0.1.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Drupal | Drupal | 8.8.0 (including) | 8.8.8 (excluding) |
| Drupal | Drupal | 8.9.0 (including) | 8.9.1 (excluding) |
| Drupal | Drupal | 9.0.0 (including) | 9.0.1 (excluding) |
| Drupal7 | Ubuntu | trusty | * |
| Drupal7 | Ubuntu | xenial | * |