Haudenschilt Family Connections CMS (FCMS) Multiple PHP remote file inclusion vulnerabilities

Summary
This host is running Haudenschilt Family Connections CMS (FCMS) and is prone to multiple remote file inclusion vulnerabilities.
Impact
Successful exploitation will let the remote attacker to obtain sensitive information or execute malicious PHP code in the context of the webserver process. Impact Level: Application.
Solution
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.
Insight
The flaw is due to improper validation of user-supplied data to 'familynews.php' and 'settings.php' scripts via 'current_user_id' parameter.
Affected
Haudenschilt Family Connections CMS (FCMS) version 2.2.3
References