EUVD-2026-79311
GHSA-jhm6-4593-gph5
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Network HTTP, low complexity, unauthenticated attacker but requires a victim to interact (UI:R); cross-context execution changes scope (S:C) with high confidentiality/integrity and no availability impact.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionNVD
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 require human interaction from a person other than the attacker and while the vulnerability is in Oracle WebCenter Portal, attacks may significantly impact additional products (scope change). 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 9.3 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N).
AnalysisAI
Unauthenticated network attackers can obtain complete confidentiality and integrity compromise of Oracle WebCenter Portal 12.2.1.4.0 and 14.1.2.0.0 through the Portlet Services component, but only after a legitimate portal user is induced to interact with attacker-influenced content - exploitation is gated by the UI:R prerequisite, which requires human interaction from a person other than the attacker. With a CVSS 3.1 base score of 9.3 (AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N), the flaw allows unauthorized creation, deletion or modification of, and complete read access to, data accessible through the portal, and because scope changes (S:C) the impact can extend to additional integrated products. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation targets the Portlet Services component of Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0, reachable remotely over HTTP by an unauthenticated attacker (PR:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuinely high-severity issue but with an important caveat that separates it from a 'patch-tonight' emergency: exploitation requires human interaction. … 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 | Oracle ships fixes for Fusion Middleware flaws through its Critical Patch Update program, and the remediation path for CVE-2026-73957 is to apply the WebCenter Portal patch published in the Oracle security alert at https://www.oracle.com/security-alerts/cspusep2026.html; no explicit fix version strings beyond the affected releases 12.2.1.4.0 and 14.1.2.0.0 were supplied in the source data, so confirm the exact patch identifier against the advisory and My Oracle Support before scheduling - patch availability per vendor advisory, with the precise patched build not independently confirmed here. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every instance of Oracle WebCenter Portal 12.2.1.4.0 and 14.1.2.0.0, identify internet-facing or broadly accessible deployments, restrict network access to the Portlet Services component where business use allows, and issue an urgent user-awareness notice about suspicious portal content and links because exploitation requires a legitimate user to interact. …
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