EUVD-2026-79363
GHSA-f4w7-6vpg-q7jf
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description and CWE-287 support unauthenticated remote HTTP access (AV:N/AC:L/PR:N/UI:N) yielding full product takeover (C:H/I:H/A:H) confined to the instance (S:U).
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
3DescriptionCVE.org
Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites). 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 Sites. Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Sites. 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
An authentication bypass in Oracle WebCenter Sites 12.2.1.4.0 and 14.1.2.0.0 enables unauthenticated remote attackers to take over the application via HTTP requests, rated CVSS 3.1 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) with full confidentiality, integrity and availability impact. The vulnerability sits in the WebCenter Sites component of Oracle Fusion Middleware and requires no credentials, no user interaction and no non-default configuration - only network reachability of the HTTP service - making any internet-exposed instance an immediate target. …
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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 default configurations of Oracle WebCenter Sites 12.2.1.4.0 and 14.1.2.0.0. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine high-priority vulnerability whose CVSS 3.1 score of 9.8 is 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 | Patch availability: patch available per vendor advisory - Oracle's Critical Patch Update advisory at https://www.oracle.com/security-alerts/cspusep2026.html is the authoritative source and should be applied to the supported releases 12.2.1.4.0 and 14.1.2.0.0; no exact patched build number was supplied in the input data, so confirm the specific release from that advisory before upgrading. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory every WebCenter Sites instance and determine which run the affected versions 12.2.1.4.0 and 14.1.2.0.0; for any of those reachable from the internet, immediately remove direct external access by blocking inbound HTTP/HTTPS at the perimeter or placing the service behind an authenticating reverse proxy or WAF, and notify the platform owner that no vendor patch is currently available. …
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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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