CVE-2026-83259 in Commerce Guided Search
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Commerce Guided Search / Oracle Commerce Experience Manager product of Oracle Commerce (component: Forge). The supported version that is affected is 11.4.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Commerce Guided Search / Oracle Commerce Experience Manager. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Commerce Guided Search / Oracle Commerce Experience Manager accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Commerce Guided Search / Oracle Commerce Experience Manager. CVSS 3.1 Base Score 7.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Forge component of Oracle Commerce Guided Search and Oracle Commerce Experience Manager, specifically affecting version 11.4.0. This security flaw presents a significant risk to organizations relying on these platforms for e-commerce operations and content management. The core issue stems from an architectural or implementation deficiency that permits unauthorized actors to interact with critical system functions without proper authentication checks in specific contexts. While the vulnerability requires low-privileged access, it does not demand high-level administrative rights, making it accessible to a broader range of potential attackers who may have gained initial foothold within the network perimeter through phishing, credential theft, or other lower-severity exploits.
From an operational perspective, this flaw allows for unauthorized access to critical data stored within the Oracle Commerce ecosystem. This includes sensitive customer information, transactional records, and proprietary business logic embedded in the guided search configurations. The ability of a low-privileged attacker with network access via HTTP to compromise these systems indicates that the vulnerability is remotely exploitable over standard web protocols. This expands the attack surface significantly, as attackers do not need direct physical or local system access but can leverage existing network connectivity to initiate malicious requests against the vulnerable endpoints.
The impact of this vulnerability extends beyond mere data exfiltration. Successful exploitation also enables an attacker to cause a partial denial of service against Oracle Commerce Guided Search and Experience Manager services. This availability impact suggests that the flaw may allow for resource exhaustion, state corruption, or functional disruption within the application layer. By triggering specific conditions through crafted HTTP requests, an adversary can degrade system performance or render certain features inaccessible to legitimate users, thereby disrupting business continuity and potentially causing financial loss due to interrupted sales channels or degraded user experience.
In terms of classification standards, this vulnerability aligns with CWE-287, which describes Improper Authentication, as it allows unauthorized access by bypassing expected identity verification mechanisms for specific operations. Additionally, the ability to cause a partial denial of service relates closely to CWE-400, Uncontrolled Resource Consumption, or potentially CWE-915 if the issue involves improper control of dynamically managed code resources. From an offensive security perspective, this behavior maps to MITRE ATT&CK techniques such as T1078 Valid Accounts for initial access and privilege escalation within the application context, followed by T1499 Endpoint Denial of Service or T1485 Data Destruction if the partial DOS leads to data loss. The CVSS 3.1 base score of 7.1 reflects a High severity rating, driven primarily by high confidentiality impact and low availability impact with no integrity changes, indicating that while system control is not fully achieved, the exposure of sensitive data remains the primary concern.
Mitigation strategies must focus on immediate patching to the latest supported version provided by Oracle, which addresses the underlying code defects in the Forge component. Organizations should also implement strict network segmentation to limit HTTP access from untrusted zones to systems hosting these critical commerce components. Web Application Firewalls can be configured with specific rulesets to detect and block anomalous request patterns associated with this vulnerability, particularly those targeting known vulnerable endpoints or parameters within the Guided Search interface. Furthermore, enforcing multi-factor authentication for all administrative accounts and applying the principle of least privilege to service accounts will reduce the blast radius if an attacker manages to exploit this flaw. Regular security assessments and penetration testing should be conducted to identify similar misconfigurations in other components of the Oracle Commerce suite before they can be leveraged by malicious actors.