Vulnerability in Oracle WebLogic Server Proxy Plug-In Affects Fusion Middleware
CVE-2026-87300

8.7HIGH

Key Information:

Vendor

Oracle
Status
Oracle Weblogic Server Proxy Plug-in
Vendor
CVE Published:
20 October 2026

What is CVE-2026-87300?

A vulnerability exists in the Oracle WebLogic Server Proxy Plug-In that allows unauthenticated attackers with network access via HTTP to compromise the plugin. This weakness may lead to unauthorized creation, deletion, or modification of critical data accessible through the Oracle WebLogic Server Proxy Plug-In. Due to its nature, the attack can impact several related products, facilitating extensive data exposure and breaching data integrity. Organizations using supported versions should prioritize remediation to ensure data security.

Affected Version(s)

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

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.