Phpunity Newsmanager Local File Inclusion Vulnerability

Summary
This host is running Phpunity Newsmanager and is prone to local file inclusion vulnerability.
Impact
Successful exploitation will allow attacker to disclose potentially sensitive information. 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
Input passed to the 'id' parameter in 'misc/tell_a_friend/tell.php' is not properly verified before being used to read files. This can be exploited to partially disclose content of arbitrary files via directory traversal attacks and URL-encoded NULL bytes.
Affected
Phpunity.Newsmanager
References