EUVD-2026-79307
GHSA-4737-wf8m-fpjp
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor describes easily exploitable pre-auth network HTTP takeover with full C/I/A impact; retaining AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H, though no independent technical detail confirms it.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Portlet Services). 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. Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Portal. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
AnalysisAI
Authentication bypass in the Portlet Services component of Oracle WebCenter Portal 12.2.1.4.0 and 14.1.2.0.0 lets unauthenticated remote attackers reach protected functionality over HTTP and, on success, take over the application (CVSS 3.1 base score 9.8, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). The flaw maps to CWE-287 (Improper Authentication), meaning the portal's Portlet Services layer fails to properly validate that a request originates from an authenticated session. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation over HTTP against Oracle WebCenter Portal (Fusion Middleware) versions 12.2.1.4.0 and 14.1.2.0.0, specifically the Portlet Services component, per Oracle's 'easily exploitable' / PR:N / UI:N / AC:L characterization. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This carries a legitimately high risk profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the Oracle September 2026 Critical Patch Update, which contains the fix for this issue, following the advisory at https://www.oracle.com/security-alerts/cspusep2026.html; Oracle CPUs are cumulative and typically require application downtime and a patch-set-compatible WebLogic/Fusion Middleware baseline, so plan a maintenance window and validate in a staging environment first. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every Oracle WebCenter Portal deployment and confirm which ones run 12.2.1.4.0 or 14.1.2.0.0, then immediately restrict network reachability of the Portlet Services HTTP interface so that only trusted networks and authenticated users can reach it; for any instance that must remain internet-facing, front it with a WAF or reverse proxy that enforces authentication and blocks direct access to portlet service paths, and enable verbose logging on those paths. …
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Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
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External POC / Exploit Code
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