An issue was discovered in Jorani 0.6.5. SQL Injection (error-based) allows a user of the application without permissions to read and modify sensitive information from the database used by the application via the startdate or enddate parameter to leaves/validate.
https://www.exploit-db.com/exploits/45340/
https://hackpuntes.com/cve-2018-15918-jorani-leave-management-system-0-6-5-sql-injection/