rConfig prior to version 3.9.4 is susceptible to sensitive information disclosure. An unauthenticated attacker can retrieve saved cleartext credentials via a GET request to settings.php. Because the application does not exit after a redirect is applied, the rest of the page still executes, resulting in the disclosure of cleartext credentials in the response.
View the template here CVE-2020-9425.yaml
References:
https://blog.hivint.com/rconfig-3-9-3-unauthenticated-sensitive-information-disclosure-ead4ed88f153