A high-severity vulnerability exists in Oracle WebCenter Portal (component: Portlet Services) versions 12.2.1.4.0 and 14.1.2.0.0. This vulnerability allows a low-privileged attacker with network access via HTTP to potentially take over the Oracle WebCenter Portal. The vulnerability has a CVSS 3.1 base score of 8.8, indicating high impact on confidentiality, integrity, and availability. Oracle has released security patches addressing this vulnerability as part of its September 2026 Critical Security Patch Update.