This indicates an attempt to exploit an Information Disclosure Vulnerability in Coremail Mail System. The vulnerability is caused by the application’s poor sanitization of user-supplied inputs. An attacker could take advantage of this flaw to obtain sensitive data from the vulnerable system.Affected products include Coremail XT 3.0.1 to 5.0.9.
In order to patch this vulnerability, please install the official patch the vendor made available for supported, vulnerable instances.