Description
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 low privileged attacker with network access via HTTP to compromise Oracle WebCenter Sites. While the vulnerability is in Oracle WebCenter Sites, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Sites. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
Published: 2026-09-15
Score: 9.9 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote code execution and full platform compromise
Action: Immediate Patch
AI Analysis

Impact

A flaw in Oracle WebCenter Sites permits an attacker with low privileges and access over HTTP to execute arbitrary code, resulting in a complete takeover of the application. The vulnerability is simple to exploit; no user interaction or special configuration beyond network reach is required.

Affected Systems

Oracle WebCenter Sites versions 12.2.1.4.0 and 14.1.2.0.0 are affected. No other products are listed as impacted.

Risk and Exploitability

The CVSS v3.1 base score of 9.9 indicates severe confidentiality, integrity, and availability impacts. EPSS shows an exploit probability of less than 1% and the vulnerability is not listed in the CISA KEV catalog. The attack vector is network‑based via HTTP, requiring only low privileges and no UI. Because the vector includes a scope change, exploitation could extend to additional components beyond WebCenter Sites, increasing overall enterprise risk. The combination of high potential damage and high severity keeps the risk level critical, despite the currently low real‑world exploitation probability.

Generated by OpenCVE AI on September 20, 2026 at 12:51 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the official Oracle patch or upgrade to a non‑affected WebCenter Sites release as recommended in the security advisory.
  • Restrict HTTP access to the WebCenter Sites server through firewall rules or network segmentation, allowing only trusted hosts or internal networks.
  • Ensure only authorized users have administrative or privileged API access; remove any anonymous or low‑privileged access to exposed endpoints.

Generated by OpenCVE AI on September 20, 2026 at 12:51 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 23 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Oracle webcenter Portal
CPEs cpe:2.3:a:oracle:webcenter_portal:12.2.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:webcenter_portal:14.1.2.0.0:*:*:*:*:*:*:*
Vendors & Products Oracle webcenter Portal

Sun, 20 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
Title Low-Privilege HTTP Exploit Enables Full Takeover in Oracle WebCenter Sites

Sun, 20 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via Weak Access Control in WebCenter Sites Allows HTTP Attacker to Compromise the Platform
Weaknesses CWE-269

Thu, 17 Sep 2026 04:30:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via Weak Access Control in WebCenter Sites Allows HTTP Attacker to Compromise the Platform
Weaknesses CWE-269

Wed, 16 Sep 2026 17:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 15 Sep 2026 20:15:00 +0000

Type Values Removed Values Added
Description 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 low privileged attacker with network access via HTTP to compromise Oracle WebCenter Sites. While the vulnerability is in Oracle WebCenter Sites, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle WebCenter Sites. CVSS 3.1 Base Score 9.9 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
First Time appeared Oracle
Oracle webcenter Sites
CPEs cpe:2.3:a:oracle:webcenter_sites:12.2.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:webcenter_sites:14.1.2.0.0:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle webcenter Sites
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Subscriptions

Oracle Webcenter Portal Webcenter Sites
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-09-16T16:25:35.770Z

Reserved: 2026-08-31T15:40:57.333Z

Link: CVE-2026-83031

cve-icon Vulnrichment

Updated: 2026-09-16T15:43:27.637Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-15T20:18:11.370

Modified: 2026-09-23T15:24:35.320

Link: CVE-2026-83031

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-20T13:00:11Z

Weaknesses