There is a reflected XSS vulnerability in the CMS Made Simple 2.2.8 admin/myaccount.php. This vulnerability is triggered upon an attempt to modify a user's mailbox with the wrong format. The response contains the user's previously entered email address.
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 "file rename" operation in the admin dashboard contains a sensitive information disclosure vulnerability, exploitable by an admin user, that can cause DoS by moving config.php to the upload/ directory.
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.
In CMS Made Simple (CMSMS) through 2.2.7, the "file delete" operation in the admin dashboard contains an arbitrary file deletion vulnerability that can cause DoS, exploitable by an admin user, because the attacker can remove all lib/ files in all directories.
CMS Made Simple (CMSMS) 2.2.7 contains a privilege escalation vulnerability from ordinary user to admin user by arranging for the eff_uid value within $_COOKIE[$this->_loginkey] to equal 1, because files in the tmp/ directory are accessible through HTTP requests. NOTE: this vulnerability exists because of an incorrect fix for CVE-2018-10084.
In CMS Made Simple (CMSMS) through 2.2.7, the "module remove" operation in the admin dashboard contains an arbitrary file deletion vulnerability that can cause DoS, exploitable by an admin user, because the attacker can remove all lib/ files in all directories.