CVE-2026-87300

Analyzed Analyzed - Analysis Complete

Remote Code Execution in Oracle WebLogic Server Proxy Plug-in

Publication date: 2026-10-20

Last updated on: 2026-11-05

Assigner: Oracle

Description

Vulnerability in the Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: WebLogic Server Proxy Plug-In for Third-Party Web Servers). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0 and 14.1.2.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Weblogic Server Proxy Plug-in. While the vulnerability is in Oracle Weblogic Server Proxy Plug-in, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Weblogic Server Proxy Plug-in accessible data as well as unauthorized access to critical data or complete access to all Oracle Weblogic Server Proxy Plug-in accessible data. CVSS 3.1 Base Score 8.7 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-05

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-87300

EUVD

EUVD-2026-106341

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	weblogic_server_proxy_plug-in	12.2.1.4.0
oracle	weblogic_server_proxy_plug-in	14.1.1.0.0
oracle	weblogic_server_proxy_plug-in	14.1.2.0.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle WebLogic Server Proxy Plug-in versions 12.2.1.4.0, 14.1.1.0.0, and 14.1.2.0.0. An unauthenticated attacker can exploit it via HTTP to compromise the plug-in. Successful exploitation may allow unauthorized access or modification of critical data.

Detection Guidance

Detection requires checking for vulnerable versions of Oracle WebLogic Server Proxy Plug-in (12.2.1.4.0, 14.1.1.0.0, or 14.1.2.0.0). Inspect installed software versions and network traffic for HTTP requests targeting affected systems. No specific commands are provided in the context.

Impact Analysis

An attacker could gain unauthorized access to sensitive data, modify or delete critical information, or impact additional connected products. The vulnerability has high confidentiality and integrity impacts with a CVSS score of 8.7.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, which may violate GDPR (data protection) and HIPAA (health data privacy) compliance requirements. Organizations using affected versions should address it promptly to avoid regulatory penalties.

Mitigation Strategies

Apply the latest security patches from Oracle for affected versions of WebLogic Server Proxy Plug-in (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0). Disable HTTP access to the vulnerable component if not required. Monitor network traffic for unusual HTTP requests targeting the plug-in.

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