In CMS Made Simple (CMSMS) through 2.2.7, the "file unpack" operation in the admin dashboard contains a remote code execution vulnerability exploitable by an admin user because a .php file can be present in the extracted ZIP archive.
In CMS Made Simple (CMSMS) through 2.2.7, the "module import" operation in the admin dashboard contains a remote code execution vulnerability, exploitable by an admin user, because an XML Package can contain base64-encoded PHP code in a data element.
CMS Made Simple (CMSMS) through 2.2.6 allows PHP object injection because of an unserialize call in the _get_data function of \lib\classes\internal\class.LoginOperations.php. By sending a crafted cookie, a remote attacker can upload and execute code, or delete files.
CMS Made Simple (CMSMS) through 2.2.7 contains an arbitrary code execution vulnerability in the admin dashboard because the implementation uses "eval('function testfunction'.rand()" and it is possible to bypass certain restrictions on these "testfunction" functions.