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CVE-2026-83047 – Unauthenticated Data Exposure / Integrity Compromise – Oracle WebCenter Portal 12.2

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Summary

CVE-2026-83047 is a high-severity vulnerability in the Runtime Tools component of Oracle WebCenter Portal, part of Oracle Fusion Middleware. The flaw allows an unauthenticated, remote attacker to send crafted HTTP requests and gain unauthorized access to critical data as well as perform unauthorized data modifications, without requiring any credentials or user interaction. Oracle rates the issue 8.2 (High) on the CVSS v3.1 scale and describes it as "easily exploitable."

Technical details

  • Root cause: A flaw in the Runtime Tools component of Oracle WebCenter Portal that fails to properly restrict or validate network-facing requests, permitting an attacker to reach functionality intended to be protected.
  • Trigger conditions: No authentication or prior privileges are needed; the vulnerable component is reachable over HTTP by any network-based attacker who can route traffic to the WebCenter Portal deployment.
  • Attack vector: Network (remote), low attack complexity, no privileges required, no user interaction — consistent with a directly exploitable web-facing endpoint.
  • Impact: Successful exploitation results in high-impact unauthorized access to critical data (confidentiality) and a lower-severity ability to modify data (integrity); availability is not affected.

Affected software

  • Oracle WebCenter Portal 12.2.1.4.0
  • Oracle WebCenter Portal 14.1.2.0.0

Severity

  • CVSS v3.1 Base Score: 8.2 (High)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Mitigation and recommended actions

  • Immediate: Apply the Oracle Critical Security Patch Update (CSPU) for September 2026, which addresses this vulnerability in Oracle WebCenter Portal 12.2.1.4.0 and 14.1.2.0.0. Organizations should identify their current WebCenter Portal patch level and apply the corresponding fix released by Oracle for this advisory cycle.
  • If immediate patching is not possible: Restrict network exposure of Oracle WebCenter Portal Runtime Tools endpoints — do not expose the application directly to the internet; place it behind a properly configured reverse proxy, WAF, or VPN, and limit access to trusted internal networks until the patch is applied.
  • Review WebCenter Portal access and audit logs for anomalous, unauthenticated HTTP requests to Runtime Tools endpoints as a precaution while patching is completed.

References

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