A SQL injection vulnerability in the activities API in OpenProject before 8.3.2 allows a remote attacker to execute arbitrary SQL commands via the id parameter. The attack can be performed unauthenticated if OpenProject is configured not to require authentication for API access.
https://www.openproject.org/release-notes/openproject-8-3-2/
https://seclists.org/bugtraq/2019/May/22
https://groups.google.com/forum/#%21msg/openproject-security/XlucAJMxmzM/hESpOaFVAwAJ
http://seclists.org/fulldisclosure/2019/May/7
http://packetstormsecurity.com/files/152806/OpenProject-8.3.1-SQL-Injection.html