CVE-2026-46803: Oracle Webcenter Portal

Critical severity, CVSS 10.0. EPSS: 0.5% chance of exploitation in the next 30 days.

Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Portal. While the vulnerability is in Oracle WebCenter Portal, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. CVSS 3.1 Base Score 10.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Affected products

• Oracle Webcenter Portal: version 12.2.1.4.0 only; version 14.1.2.0.0 only

Published 2026-06-17. Last modified 2026-06-19.