EUVD-2026-79371
GHSA-9h2x-pf7f-4g3j
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Network-reachable, low-complexity, unauthenticated Composer flaw needing victim interaction (UI:R) that yields full compromise and crosses a security scope, matching Oracle's vector.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
4DescriptionNVD
Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Composer). 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 takeover of Oracle WebCenter Portal. CVSS 3.1 Base Score 9.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H).
AnalysisAI
Unauthenticated attackers who can reach the Composer component of Oracle WebCenter Portal 12.2.1.4.0 or 14.1.2.0.0 over HTTP can achieve complete takeover of the portal - full confidentiality, integrity and availability impact - provided they first persuade a legitimate user to perform some action, since the CVSS vector requires user interaction (UI:R). The scope-change flag (S:C) means a successful exploit can extend beyond the portal itself into integrated or dependent products, which is why the base score reaches 9.6 despite the interaction requirement. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires network access over HTTP to the Composer component of Oracle WebCenter Portal 12.2.1.4.0 or 14.1.2.0.0; no authentication is required (PR:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuinely high-priority vulnerability, though the raw 9.6 CVSS slightly overstates practical exploitability versus a pure pre-auth RCE. … 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 from Oracle's Critical Security Patch Update referenced at https://www.oracle.com/security-alerts/cspusep2026.html; the available intelligence confirms patch availability through that vendor advisory but does not expose an exact patched build number, so confirm the specific bundle or patch ID for 12.2.1.4.0 and 14.1.2.0.0 against the advisory before closing remediation - patch status per available data is 'Patch available per vendor advisory', not a confirmed tagged fix version. … 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, determine which are reachable from the internet or untrusted internal networks, and block HTTP access to the Composer component at the perimeter so that only known users on trusted networks can reach it. …
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External POC / Exploit Code
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