Dokeos 'language' Parameter SQL Injection Vulnerability

Summary
This host is running Dokeos and is prone to SQL injection vulnerability.
Impact
Successful exploitation will allow remote attackers to execute arbitrary SQL commands in applications database and gain complete control over the vulnerable web application. 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 insufficient validation of 'language' HTTP GET parameter passed to '/index.php' script.
Affected
Dokeos versions 2.2 RC2 and probably prior.
Detection
Send a crafted exploit string via HTTP GET request and check whether it is possible to execute sql query.
References