Vulnerability in the Oracle Communications Messaging Server component of Oracle Communications Applications (subcomponent: Web Client). The supported version that is affected is 3.x. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Communications Messaging Server. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Communications Messaging Server, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Communications Messaging Server accessible data as well as unauthorized read access to a subset of Oracle Communications Messaging Server accessible data. CVSS 3.0 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).