Centreon 19.04 allows attackers to execute arbitrary OS commands via the Command Line field of main.php?p=60807&type=4 (aka the Configuration > Commands > Discovery screen). CVE-2019-17501 and CVE-2019-16405 are similar to one another and may be the same.
SQL injection vulnerabilities in Centreon through 19.04 allow attacks via the svc_id parameter in include/monitoring/status/Services/xml/makeXMLForOneService.php.
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).
Centreon 3.4.x (fixed in Centreon 18.10.0) allows XSS via the Service field to the main.php?p=20201 URI, as demonstrated by the "Monitoring > Status Details > Services" screen.
There is Remote Code Execution in Centreon 3.4.6 including Centreon Web 2.8.23 via the RPN value in the Virtual Metric form in centreonGraph.class.php.