CVE-2026-83034

Analyzed Analyzed - Analysis Complete

Oracle WebCenter Sites Unauthorized Data Access Vulnerability

Publication date: 2026-09-15

Last updated on: 2026-09-23

Assigner: Oracle

Description

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. Easily exploitable 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 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-15

Last Modified

2026-09-23

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-83034

EUVD

EUVD-2026-79362

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 vulnerability affects Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0. It allows an unauthenticated attacker to remotely access the system via HTTP and potentially gain unauthorized access to sensitive data or take full control of the application.

Detection Guidance

This vulnerability affects Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0. Detection involves checking for vulnerable versions and exposed HTTP interfaces. Use network scanning tools like Nmap to identify Oracle WebCenter Sites instances. Example command: nmap -p 80,443 --script oracle-webcenter-sites-version <target_IP>. Verify software versions via Oracle's documentation or system logs.

Impact Analysis

If exploited, attackers could access critical or all accessible data in Oracle WebCenter Sites. This may lead to data breaches, unauthorized modifications, or service disruption depending on the attacker's goals.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating GDPR and HIPAA requirements for data confidentiality and integrity. Organizations may face legal penalties, reputational damage, and loss of compliance certifications.

Mitigation Strategies

Apply the latest security patches from Oracle for Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0. If patches are unavailable, consider disabling HTTP access to the component or restricting network access via firewall rules until updates are applied.

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