app/Model/Server.php in MISP 2.4.109 allows remote command execution by a super administrator because the PHP file_exists function is used with user-controlled entries, and phar:// URLs trigger deserialization.
https://zigrin.com/advisories/misp-command-injection-via-phar-deserialization/
https://github.com/MISP/MISP/commit/c42c5fe92783dd306b7600db1f6a25324445b40c