An authenticated user of Unitrends Enterprise Backup before 9.1.2 can execute arbitrary OS commands by sending a specially crafted filename to the /api/restore/download-files endpoint, related to the downloadFiles function in api/includes/restore.php.

An attacker that has hijacked a Unitrends Enterprise Backup (before 9.1.2) web server session can leverage api/includes/users.php to change the password of the logged in account without knowing the current password. This allows for an account takeover.

An issue was discovered in Unitrends Enterprise Backup before 9.1.2. A lack of sanitization of user input in the createReportName and saveReport functions in recoveryconsole/bpl/reports.php allows for an authenticated user to create a randomly named file on disk with a user-controlled extension, contents, and path, leading to remote code execution, aka Unrestricted File Upload.