Zenario CMS 9.2 allows an authenticated admin user to bypass the file upload restriction by creating a new 'File/MIME Types' using the '.phar' extension. Then an attacker can upload a malicious file, intercept the request and change the extension to '.phar' in order to run commands on the server.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-23043
• https://fluidattacks.com/advisories/simone/
• https://github.com/TribalSystems/Zenario/releases/tag/9.2.55826
• TribalSystems/Zenario@f0682d2