Zenario CMS 9.0.54156 is vulnerable to File Upload. The web server can be compromised by uploading and executing a web-shell which can run commands, browse system files, browse local resources, attack other servers, and exploit the local vulnerabilities, and so forth.
packetstormsecurity.com/files/166617/Zenario-CMS-9.0.54156-Remote-Code-Execution.html
github.com/hieuminhnv/Zenario-CMS-9.0-last-version/issues/2
github.com/TribalSystems/Zenario
github.com/TribalSystems/Zenario/commit/4566d8a9ac6755f098b3373252fdb17754a77007
github.com/TribalSystems/Zenario/releases/tag/9.0.55141
minhnq22.medium.com/file-upload-to-rce-on-zenario-9-0-54156-cms-fa05fcc6cf74
nvd.nist.gov/vuln/detail/CVE-2021-42171