CVE-2026-83043

Analyzed Analyzed - Analysis Complete

Oracle WebCenter Portal Remote Code Execution

Publication date: 2026-09-15

Last updated on: 2026-09-21

Assigner: Oracle

Description

Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Composer). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable 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 and while the vulnerability is in Oracle WebCenter Portal, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. CVSS 3.1 Base Score 9.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-21

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83043

EUVD

EUVD-2026-79371

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	webcenter_portal	12.2.1.4.0
oracle	webcenter_portal	14.1.2.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle WebCenter Portal, specifically in the Composer component. It affects versions 12.2.1.4.0 and 14.1.2.0.0. An unauthenticated attacker can exploit it remotely via HTTP to take over the portal. Exploitation requires user interaction and may impact other connected products.

Detection Guidance

Detection requires checking for Oracle WebCenter Portal versions 12.2.1.4.0 or 14.1.2.0.0. Verify if the system is running these versions via Oracle's documentation or server logs. Network scans can identify exposed HTTP interfaces.

Impact Analysis

An attacker could gain full control of your Oracle WebCenter Portal, leading to unauthorized access, data theft, or disruption of services. Since attacks may affect additional products, the impact could extend beyond the portal itself.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, violating GDPR (data protection) and HIPAA (health information privacy) requirements. Compliance may be compromised due to potential loss of confidentiality, integrity, and availability of sensitive data.

Mitigation Strategies

Apply Oracle's official patches or updates for Oracle WebCenter Portal. Restrict network access to HTTP ports via firewalls. Disable unnecessary services and monitor for suspicious activity.

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