ImpressPages CMS 'actions.php' Remote Code Execution Vulnerability

Summary
ImpressPages CMS is prone to a remote-code execution vulnerability. Exploiting this issue will allow attackers to execute arbitrary code within the context of the affected application. ImpressPages CMS 1.0.12 is vulnerable other versions may also be affected.
Solution
Vendor updates are available. Please see the references for more information.
References