CVE-2026-91247

Analyzed Analyzed - Analysis Complete

Unauthenticated Data Manipulation in Oracle WebCenter Portal

Publication date: 2026-10-20

Last updated on: 2026-11-04

Assigner: Oracle

Description

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).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-04

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91247

EUVD

EUVD-2026-106502

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-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0. It allows an unauthenticated attacker with network access via HTTP to potentially compromise the system. Exploitation requires human interaction from a victim and could lead to unauthorized data modification or deletion, as well as partial denial of service.

Detection Guidance

Detection of CVE-2026-91247 requires checking for vulnerable versions of Oracle WebCenter Portal (12.2.1.4.0 or 14.1.2.0.0) and monitoring for unauthorized data modifications or partial denial of service attempts via HTTP. No specific commands are provided in the context.

Impact Analysis

If exploited, this vulnerability could allow attackers to modify or delete critical data in Oracle WebCenter Portal, or cause partial service disruptions. Since it requires user interaction, victims may unknowingly trigger the attack by clicking malicious links or visiting compromised pages.

Compliance Impact

This vulnerability allows unauthorized modification or deletion of critical data and partial denial of service, which could lead to violations of data integrity and availability requirements in GDPR and HIPAA. Unauthorized access to or alteration of sensitive data may result in non-compliance with these regulations.

Mitigation Strategies

Apply the latest security patches from Oracle for Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0 to address the vulnerability.

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EPSS Chart

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