CVE-2026-73956

Analyzed Analyzed - Analysis Complete

Oracle WebCenter Portal Remote Code Execution

Publication date: 2026-09-15

Last updated on: 2026-09-22

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 of this vulnerability can result in takeover of Oracle WebCenter Portal. 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

2026-09-22

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-73956

EUVD

EUVD-2026-79310

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 Portal versions 12.2.1.4.0 and 14.1.2.0.0. It allows an unauthenticated attacker to remotely access and take over the system via HTTP requests. The vulnerability has a CVSS score of 9.8, indicating severe impact on confidentiality, integrity, and availability.

Detection Guidance

Detection of CVE-2026-73956 requires checking for vulnerable versions of Oracle WebCenter Portal (12.2.1.4.0 or 14.1.2.0.0) and monitoring for unauthorized access attempts via HTTP. Inspect server logs for unusual activity and verify patch levels. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to gain full control of your Oracle WebCenter Portal. This could lead to unauthorized data access, modification, or deletion, and potentially disrupt services entirely.

Compliance Impact

This vulnerability allows unauthenticated attackers to compromise Oracle WebCenter Portal, potentially leading to unauthorized access to sensitive data. Such a takeover could result in violations of GDPR (data confidentiality) and HIPAA (protected health information integrity), depending on the data processed by the portal.

Mitigation Strategies

Apply the latest Oracle Critical Patch Update for Oracle WebCenter Portal immediately to address the vulnerability. Ensure network access controls restrict HTTP access to trusted sources only. Monitor Oracle's security advisories for updates and patches.

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