dotProject '.php' Files Installation Path Disclosure Vulnerability

Summary
The host is running dotProject and is prone to path disclosure vulnerability.
Impact
Successful exploitation will allow attacker to gain 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
The flaw is due to error in certain '.php' files. A direct request to these files reveals the installation path in an error message.
Affected
dotProject version 2.1.4
References