It indicates a possible exploit of a PHP remote file inclusion vulnerability in Radical Designs Activist Mobilization Platform (AMP).
This flaw is due to an input validation error in the "includes/base.php" script that does not validate the "base_path" parameter.
Radical Designs Activist Mobilization Platform (AMP) version 3.2 and prior.
The execution of arbitrary PHP code on the system.
Currently we are not aware of any officially supplied fix for this issue.