SQL injection vulnerabilities in CMG Suite 8.4 SP2 and earlier, could allow an unauthenticated attacker to conduct an SQL injection attack due to insufficient input validation for the login interface. A successful exploit could allow an attacker to extract sensitive information from the database and execute arbitrary scripts.
https://www.mitel.com/en-gb/support/security-advisories/mitel-product-security-adivsory-19-0003-001
https://www.mitel.com/-/media/mitel/pdf/security-advisories/security-bulletin-19-0003-001.pdf