CVE-2026-91247: Medium severity Oracle WebCenter Portal vulnerability

Published Oct 20, 2026
·
Updated

Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Runtime Tools). 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 Portal. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle WebCenter Portal accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle WebCenter Portal. CVSS 3.1 Base Score 5.9 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L).

Affected Software

3 affected components
Oracle WebCenter Portal=12.2.1.4.0, =14.1.2.0.0
Oracle WebCenter Portal=12.2.1.4.0
Oracle WebCenter Portal=14.1.2.0.0

Event History

Oct 20, 2026
CVE Published
via MITRE·09:24 PM
Data Sourced
via MITRE·09:24 PM
DescriptionSeverity
Data Sourced
via NVD·10:20 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

Which deployments are affected?

Affected supported versions are Oracle WebCenter Portal 12.2.1.4.0 and 14.1.2.0.0, specifically the Runtime Tools component.

2

What does an attacker need to exploit this issue?

An unauthenticated attacker needs network access to the target over HTTP and must successfully induce human interaction from someone other than the attacker. Exploitation is rated difficult, with high attack complexity.

3

What could a successful attack allow?

A successful attack could allow unauthorized creation, deletion, or modification of critical data or all data accessible through Oracle WebCenter Portal. It could also cause a partial denial of service.

4

Is authentication required for exploitation?

No. The vulnerability can be exploited by an unauthenticated attacker, provided they have network access via HTTP and the required user interaction occurs.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203