EUVD-2026-79306
GHSA-2gwv-2f5x-4gq5
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Oracle states unauthenticated remote HTTP exploitation of Portlet Services (AV:N/AC:L/PR:N/UI:N); described impact is full data read and modify with no service disruption (C:H/I:H/A:N).
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
3DescriptionCVE.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 unauthorized creation, deletion or modification access to critical data or all Oracle WebCenter Portal accessible data as well as unauthorized access to critical data or complete access to all Oracle WebCenter Portal accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Improper authentication in the Portlet Services component of Oracle WebCenter Portal allows unauthenticated attackers with HTTP network access to the portal to bypass authentication and gain read and write access to all portal-accessible data, including the ability to create, delete, or modify critical content. Only versions 12.2.1.4.0 and 14.1.2.0.0 of this Oracle Fusion Middleware product are affected, and the flaw is rated high severity (CVSS 3.1 base 9.1, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) with no availability impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to an Oracle WebCenter Portal instance (versions 12.2.1.4.0 or 14.1.2.0.0) over HTTP, specifically its Portlet Services component; per the CVSS vector (PR:N/UI:N/AC:L) no authentication, no user interaction, and no special client-side conditions are needed against a running portal. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The published CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N, base 9.1) describes a remote, unauthenticated, low-complexity flaw with high confidentiality and integrity impact but no availability impact - consistent with a CWE-287 authentication weakness in the Portlet Services component that lets an attacker read and modify all WebCenter Portal-accessible data. … 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 fix published in Oracle's security alert for this issue (https://www.oracle.com/security-alerts/cspusep2026.html), which is the referenced vendor advisory for CVE-2026-73952; Oracle distributes these corrections through its Fusion Middleware patch update mechanism, and the supplied data does not include an exact patched build number, so confirm the applicable patch under your Oracle support entitlement before assuming the portal is remediated. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all instances of Oracle WebCenter Portal and confirm which run 12.2.1.4.0 or 14.1.2.0.0, then immediately restrict network reachability to those instances by placing them behind a WAF or reverse proxy, blocking the Portlet Services endpoints from untrusted networks, and terminating any direct internet exposure; enable verbose authentication and access logging and alert on anomalous Portlet Services requests. …
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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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