CVE-2026-73956: 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. in Oracle Corporation Oracle WebCenter Portal
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).
AI Analysis
Technical Summary
This vulnerability affects Oracle WebCenter Portal component Composer in versions 12.2.1.4.0 and 14.1.2.0.0. It is easily exploitable remotely without authentication over HTTP, enabling attackers to compromise the portal fully. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) reflects network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Oracle's September 2026 Critical Security Patch Update includes fixes for this vulnerability. The advisory emphasizes the importance of applying patches without delay to prevent exploitation.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to take over Oracle WebCenter Portal, compromising confidentiality, integrity, and availability of the system. This could lead to full control over the portal and its data.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Affected customers should apply the official patches immediately. Oracle strongly recommends staying on actively supported versions and applying security patches without delay to prevent exploitation. Patch status is confirmed as fixed in the September 2026 update. No alternative mitigations or workarounds are specified.
CVE-2026-73956: 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. in Oracle Corporation Oracle WebCenter Portal
Description
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).
CVSS v3.1
Score 9.8critical
Affected software
Oracle Corporation
Oracle WebCenter Portal
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Oracle WebCenter Portal component Composer in versions 12.2.1.4.0 and 14.1.2.0.0. It is easily exploitable remotely without authentication over HTTP, enabling attackers to compromise the portal fully. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) reflects network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. Oracle's September 2026 Critical Security Patch Update includes fixes for this vulnerability. The advisory emphasizes the importance of applying patches without delay to prevent exploitation.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to take over Oracle WebCenter Portal, compromising confidentiality, integrity, and availability of the system. This could lead to full control over the portal and its data.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Affected customers should apply the official patches immediately. Oracle strongly recommends staying on actively supported versions and applying security patches without delay to prevent exploitation. Patch status is confirmed as fixed in the September 2026 update. No alternative mitigations or workarounds are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.893Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","vendor":"Oracle"}]
Threat ID: 6aa9a80055bf5e2cf5537c16
Added to database: 09/15/2026, 20:18:08 UTC
Last enriched: 09/15/2026, 22:32:20 UTC
Last updated: 09/16/2026, 03:03:35 UTC
Views: 3
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