Nakid CMS 'core[system_path]' Parameter Remote File Inclusion Vulnerability

Summary
This host is running Nakid CMS and is prone to remote file inclusion vulnerability.
Impact
Successful exploitation will allow attackers to include malicious PHP scripts and execute arbitrary commands with the privileges of the web server. 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 caused by an input validation error in the '/modules/catalog/upload_photo.php' script when processing the 'core[system_path]' parameter.
Affected
Nakid CMS version 0.5.2 and 0.5.1
References