CloudLinux CageFS 7.0.8-2 or below insufficiently restricts file paths supplied to the sendmail proxy command. This allows local users to read and write arbitrary files of certain file formats outside the CageFS environment.

CloudLinux CageFS 7.1.1-1 or below passes the authentication token as a command line argument. In some configurations this allows local users to view the authentication token via the process list and gain code execution as another user.