CVE-2026-83035

Analyzed Analyzed - Analysis Complete

Oracle WebCenter Sites Remote Code Execution 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 takeover of Oracle WebCenter Sites. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

EPSS Scores

Probability:
Percentile:

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-2026-83035

EUVD

EUVD-2026-79363

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-287	When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
CWE-306	The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Attack-Flow Graph

Executive Summary

This is a critical vulnerability in Oracle WebCenter Sites, versions 12.2.1.4.0 and 14.1.2.0.0. It allows an unauthenticated attacker to remotely compromise the system via HTTP, potentially taking full control of the WebCenter Sites instance.

Detection Guidance

Detection of CVE-2026-83035 requires checking for vulnerable versions of Oracle WebCenter Sites (12.2.1.4.0 or 14.1.2.0.0) on your network or system. Inspect installed software versions and verify if the affected components are present. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to gain complete control over Oracle WebCenter Sites, leading to unauthorized access, data theft, modification of content, or disruption of services. The high CVSS score indicates severe impact on confidentiality, integrity, and availability.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate GDPR (data protection) and HIPAA (health information privacy) requirements. Organizations using affected versions must address this to maintain compliance.

Mitigation Strategies

Apply the latest Oracle Critical Patch Update for Oracle WebCenter Sites immediately. Disable HTTP access if not required and restrict network access to trusted sources only. Monitor Oracle's security advisories for patches and updates.

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