CVE-2026-91240: Medium severity Oracle WebCenter Sites vulnerability
Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Sites. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebCenter Sites accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
Affected Software
Event History
Frequently Asked Questions
Which deployments are affected?
Affected supported versions are Oracle WebCenter Sites 12.2.1.4.0 and 14.1.2.0.0.
Does exploitation require credentials or user interaction?
No. The vulnerability can be exploited by an unauthenticated attacker with network access over HTTP, and it does not require user interaction.
What access must an attacker have to attempt exploitation?
An attacker needs network access to the affected Oracle WebCenter Sites instance via HTTP. The vulnerability is rated difficult to exploit, reflecting high attack complexity.
What is the potential impact of a successful attack?
A successful attack can allow unauthorized access to critical data or complete access to all data accessible through Oracle WebCenter Sites. The stated impact is confidentiality only; integrity and availability impacts are not identified.