Improper Neutralization of Special Elements used in a Command ('Command Injection')
In the Install Themes page in GeniXCMS up to 1.1.4, remote authenticated users can execute arbitrary PHP code via a .php file in a ZIP archive of a theme.
CWE-77 - Command Injection
A command injection attack involves injecting an operating system command through the data input, which gets executed on the host operating system with the privileges of the victimized application. The impact of a command injection attack may range from loss of data confidentiality and integrity to unauthorized remote access to the hosting system. The attack may cause serious data breaches and system takeover.