IlohaMail Arbitrary File Access via Session Variable Vulnerability

The target is running at least one instance of IlohaMail version 0.7.11 or earlier. Such versions contain a flaw in the processing of the session variable that allows an unauthenticated attacker to retrieve arbitrary files available to the web user, provided the filesystem backend is in use.
Upgrade to IlohaMail version 0.7.12 or later.