---
id: CVE-2026-87300
title: >-
  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)
summary: >-
  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  1…
severity: high
cvss: 8.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N'
cvssSource: cna
vendor: Oracle Corporation
product: Oracle Weblogic Server Proxy Plug-in
affected:
  - 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
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:23:55.147Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-87300'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.871Z'
---

## Overview

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).

## Affected

- `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`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.