Centreon 18.x before 18.10.6, 19.x before 19.04.3, and Centreon web before 2.8.29 allows the attacker to execute arbitrary system commands by using the value "init_script"-"Monitoring Engine Binary" in main.get.php to insert a arbitrary command into the database, and execute it by calling the vulnerable page www/include/configuration/configGenerate/xml/generateFiles.php (which passes the inserted value to the database to shell_exec without sanitizing it, allowing one to execute system arbitrary commands).
https://shells.systems/centreon-v19-04-remote-code-execution-cve-2019-13024/
https://github.com/centreon/centreon/pull/7694
https://gist.github.com/mhaskar/c4255f6cf45b19b8a852c780f50576da
http://packetstormsecurity.com/files/153504/Centreon-19.04-Remote-Code-Execution.html