Virtua Cobranca before 12R allows SQL Injection on the login page.
https://www.virtuasoftware.com.br/conteudo.php?content=downloads&lang=pt-br
https://github.com/luca-regne/my-cves/tree/main/CVE-2021-37589
http://packetstormsecurity.com/files/167480/Virtua-Software-Cobranca-12S-SQL-Injection.html