Username validation does not adhere to provided rules, which allows users to register usernames which should be rejected. This exposes the system to potential exploits in combination with other vulnerabilities.
This vulnerability affects the following application versions:
- Joomla 3.0.0
- Joomla 3.0.1
- Joomla 3.0.2
- Joomla 3.0.3
- Joomla 3.0.4
- Joomla 3.1.0
- Joomla 3.1.1
- Joomla 3.1.4
- Joomla 3.1.5
- Joomla 3.1.6