EUVD-2026-79310
GHSA-3px6-rvxh-wvw2
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Oracle describes an easily exploitable unauthenticated network HTTP authentication bypass yielding full product takeover, supporting AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
3DescriptionCVE.org
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 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
Oracle WebCenter Portal 12.2.1.4.0 and 14.1.2.0.0 can be taken over by an unauthenticated remote attacker who reaches the Composer component over HTTP, because the component fails to properly enforce authentication (CWE-287). Oracle scores this 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), meaning no credentials, user interaction, or non-default configuration are required - only network reachability of the WebCenter Portal HTTP interface, with the stated outcome being full takeover of the portal. …
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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 supported default deployments of Oracle WebCenter Portal 12.2.1.4.0 and 14.1.2.0.0, specifically reaching the Composer component. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | All CVSS signals point to maximum severity: AV:N/AC:L/PR:N/UI:N means Oracle characterizes this as remotely and easily exploitable by an unauthenticated attacker over HTTP with no user interaction, and C:H/I:H/A:H reflects Oracle's stated outcome of full 'takeover of Oracle WebCenter Portal.' The 9.8 base score is internally consistent and, for a genuine pre-auth authentication-bypass (CWE-287) leading to product takeover, well-calibrated rather than inflated. … 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 | The primary remediation is to apply the Oracle Critical Patch Update referenced in the vendor advisory (https://www.oracle.com/security-alerts/cspusep2026.html) to any instance running WebCenter Portal 12.2.1.4.0 or 14.1.2.0.0 - patch available per vendor advisory, though the supplied data does not enumerate a specific patched build number, so confirm the exact fix version against the CPU document before validating closure. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, confirm which instances of Oracle WebCenter Portal 12.2.1.4.0 and 14.1.2.0.0 are running, determine which are reachable from the internet or untrusted network segments, and take the exposed ones offline or restrict access to trusted source ranges at the firewall or load balancer so that the Composer component is no longer reachable from untrusted clients; block or tightly limit HTTP access to Composer paths in particular, since the product carries no vendor-released patch and only network reachability is required for exploitation. …
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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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