report/security/report security check preventexecpath
Moodle administrators are able to define the path to a number of executable files hosted Some administration options allow setting the path to executable files on the web server such as du, aspell, ghostscript and others. This can potentially cause a security risk. You can prevent adminstrators from changing these paths by adding the following setting to your config.php file:
$CFG->preventexecpath = true;
You should also explicitly set the relevant paths in your config.php file such as:
$CFG->pathtodu = 'PATH';
$CFG->pathtounoconv = 'PATH';
$CFG->aspellpath = 'PATH';