Codiad 2.8.4 allows remote authenticated administrators to execute arbitrary code by uploading an executable file.
https://github.com/Hacker5preme/Exploits/tree/main/CVE-2018-19423-Exploit
https://github.com/Codiad/Codiad/issues/1098
http://packetstormsecurity.com/files/162772/Codiad-2.8.4-Shell-Upload.html