CVE-2016-3165: Drupal

High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days.

The Form API in Drupal 6.x before 6.38 ignores access restrictions on submit buttons, which might allow remote attackers to bypass intended access restrictions by leveraging permission to submit a form with a button that has "#access" set to FALSE in the server-side form definition.

Affected products

• Drupal Drupal: version 6.0 only; version 6.1 only; version 6.2 only; version 6.3 only; version 6.4 only; version 6.5 only; …

Published 2016-04-12. Last modified 2026-06-17.