CVE-2026-83047 in WebCenter Portal
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Runtime Tools). 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 unauthorized access to critical data or complete access to all Oracle WebCenter Portal accessible data as well as unauthorized update, insert or delete access to some of Oracle WebCenter Portal accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Runtime Tools component of Oracle WebCenter Portal, a key element of the Oracle Fusion Middleware suite. This security flaw affects specific supported versions, namely 12.2.1.4.0 and 14.1.2.0.0, indicating that even currently maintained releases are susceptible to exploitation. The nature of this vulnerability is particularly concerning because it allows for remote code execution or data manipulation without requiring any form of user authentication. An attacker with network access via HTTP can leverage this flaw to compromise the integrity and confidentiality of the system. This lack of an authentication requirement significantly lowers the barrier to entry for malicious actors, enabling them to target systems that may not have robust perimeter defenses against unauthenticated traffic on specific application endpoints.
From a technical perspective, the vulnerability facilitates unauthorized access to critical data stored within Oracle WebCenter Portal. The impact extends beyond mere information disclosure; it also permits unauthorized modifications such as updates, inserts, and deletes to accessible data. This dual nature of confidentiality and integrity loss aligns with high-severity classifications in standard scoring systems. Specifically, this behavior is consistent with CWE-284 Improper Access Control or potentially CWE-79 if the mechanism involves injection techniques that allow for arbitrary command execution or data manipulation through web interfaces. The ability to perform write operations suggests a severe breach of trust between the application and its users, allowing attackers to alter business logic, corrupt databases, or inject malicious content into public-facing pages.
The operational impact of this vulnerability is substantial due to its high exploitability score. With a CVSS 3.1 Base Score of 8.2, classified as High severity, the risk to organizations relying on Oracle WebCenter Portal for collaboration and portal services is significant. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N) highlights that the attack vector is Network-based with Low complexity and requires no Privileges or User Interaction, while maintaining System scope unchanged but causing High Confidentiality impact and Low Integrity impact. In terms of adversarial tactics, this vulnerability maps closely to MITRE ATT&CK techniques such as T1078 Valid Accounts if credentials are later harvested from the accessed data, or more directly to T1190 Exploit Public-Facing Application where attackers target web servers to gain initial access. The lack of user interaction required means that automated scanning tools can easily identify and exploit this weakness across large networks without manual intervention.
Mitigation strategies must focus on immediate remediation through patching and enhanced network security controls. Oracle has likely released a Security Patch Update (SPU) or Critical Patch Update (CPU) addressing the Runtime Tools component; administrators should apply these updates to all affected versions immediately. In environments where patching is delayed, implementing Web Application Firewalls (WAFs) with rulesets designed to detect and block exploitation attempts related to improper access control can provide a layer of defense. Additionally, restricting HTTP access to only necessary IP ranges or enforcing HTTPS with strict certificate validation may reduce the attack surface. Regular vulnerability scanning focused on web application endpoints is essential to ensure that no unpatched instances remain exposed to the internet. Organizations should also review their data classification policies to minimize the sensitivity of data accessible through these portals, thereby reducing the potential impact if a breach occurs.