A XML External Entity (XXE) vulnerability in the VerifichePeriodiche.aspx component of GruppoSCAI RealGimm v1.1.37p38 allows attackers to read any file in the filesystem via supplying a crafted XML file.
The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.