Provide references for CVE-2021-38556.
Where can I find more information about CVE-2021-38556?
References are available at: https://github.com/RaspAP/raspap-webgui, https://github.com/RaspAP/raspap-webgui/blob/0e1d652c5e55f812aaf2a5908884e9db179416ee/includes/configure_client.php, https://zerosecuritypenetrationtesting.com/?page_id=306.