BaseFortify

Publication date: 2026-01-20

Last updated on: 2026-01-29

Assigner: Oracle

Description

Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component: Opera). Supported versions that are affected are 5.6.19.23, 5.6.25.17, 5.6.26.10 and 5.6.27.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality OPERA 5 Property Services. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Hospitality OPERA 5 Property Services, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Hospitality OPERA 5 Property Services accessible data as well as unauthorized read access to a subset of Oracle Hospitality OPERA 5 Property Services accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-01-20

Last Modified

2026-01-29

Generated

2026-07-07

AI Q&A

2026-01-21

EPSS Evaluated

2026-07-06

NVD

CVE-2026-21966

EUVD

EUVD-2026-3546

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	hospitality_opera_5	5.6.19.23
oracle	hospitality_opera_5	5.6.25.17
oracle	hospitality_opera_5	5.6.26.10
oracle	hospitality_opera_5	5.6.27.4

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-NVD-CWE-noinfo

Attack-Flow Graph

Executive Summary

This vulnerability exists in the Oracle Hospitality OPERA 5 Property Services product. It is an easily exploitable flaw that allows an unauthenticated attacker with network access via HTTP to compromise the system. The attack requires human interaction from someone other than the attacker. Successful exploitation can lead to unauthorized update, insert, or delete access to some accessible data, as well as unauthorized read access to a subset of the data within the product.

Impact Analysis

The vulnerability can impact you by allowing an attacker to gain unauthorized access to your data within Oracle Hospitality OPERA 5 Property Services. This includes the ability to read, update, insert, or delete certain data, potentially compromising data integrity and confidentiality. The scope of the attack may also affect additional products beyond the initial component.

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