Description
Joomla! Core is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to perform otherwise restricted actions and subsequently delete private messages. Joomla! Core versions 3.0.x ranging from 3.0.0 and up to and including 3.0.3 are vulnerable.
Remediation
Update to Joomla! Core version 3.0.4 or latest
References
Related Vulnerabilities
WordPress Plugin File Gallery Remote Code Execution (1.7.9)
WordPress Plugin AddToAny Share Buttons Host Header Injection (1.7.14)
PHP Incorrect Conversion between Numeric Types Vulnerability (CVE-2016-3074)
Drupal Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2015-3231)