Vulnerability in the Oracle Hospitality OPERA 5 product of Oracle Hospitality Applications (component: Opera Servlet). Supported versions that are affected are 5.6.19.19, 5.6.25.8 and 5.6.26.4. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality OPERA 5. While the vulnerability is in Oracle Hospitality OPERA 5, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Hospitality OPERA 5. CVSS 3.1 Base Score 9.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H).