Monstra CMS 3.0.4 allows remote authenticated users to upload and execute arbitrary PHP code via admin/index.php?id=filesmanager because, for example, .php filenames are blocked but .php7 filenames are not, a related issue to CVE-2017-18048.
- https://www.exploit-db.com/exploits/48479
- https://github.com/SexyBeast233/SecBooks