CVE-2013-6386

Name of the Vulnerable Software and Affected Versions Drupal versions 6.x through 6.28 Drupal versions 7.x through 7.23

Description The issue allows remote attackers to predict security strings and bypass intended restrictions via a brute force attack, due to the use of the PHP mt rand function to generate random numbers with predictable seeds.

Recommendations For Drupal versions 6.x through 6.28, update to version 6.29 or later. For Drupal versions 7.x through 7.23, update to version 7.24 or later.