Executive brief
The Drupal Examples for Developers project provides educational code samples for web developers. A vulnerability in the 'file_example' component could allow an unauthorized user to view sensitive files on the server that should be protected. This could lead to the exposure of configuration data or other private system information.
Technical details
A missing authorization (CWE-862) vulnerability exists in the 'file_example' submodule of the Drupal Examples for Developers project. The 'Read from a file' feature fails to implement sufficient access controls, allowing for 'forceful browsing' where an attacker can request and view any file accessible to the PHP process. This vulnerability is particularly dangerous if developers have copied this example code into production environments. The issue is addressed in version 4.0.6 by removing the insecure submodule; users are advised to uninstall the submodule and upgrade.
Affected products
- Drupal Examples for Developers 0.0.0 to 4.0.5
Timeline
- 2026-06-10: patched: Version 4.0.6 released and advisory published by Drupal.org
- 2026-07-10: disclosed: CVE published to NVD dataset