When adding a private file via the editor in Drupal 8.2.x before 8.2.7, the editor will not correctly check access for the file being attached, resulting in an access bypass.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| drupal/core(Packagist) | 8.2.0 | 8.2.7 | N/A |
| drupal/drupal(Packagist) | 8.2.0 | 8.2.7 | N/A |
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