published November 4, 2016
NVD has not assigned a CVSS score to this record. It sits in the 99.6th percentile for exploit probability.
The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4, when registration has been disabled, allows remote attackers to create user accounts by leveraging failure to check the Allow User Registration configuration setting.