CVE-2026-83134 in iStore
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle iStore product of Oracle E-Business Suite (component: Shopping Cart). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle iStore. While the vulnerability is in Oracle iStore, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle iStore accessible data. CVSS 3.1 Base Score 7.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N).
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Oracle iStore component of the Oracle E-Business Suite, specifically affecting the Shopping Cart functionality across supported versions ranging from 12.2.3 to 12.2.15. This security flaw represents a significant risk due to its network-accessible nature and relatively low barrier for exploitation. The vulnerability allows an attacker with low privileges who has established network access via HTTP to compromise the integrity of the Oracle iStore application environment. Unlike many vulnerabilities that are isolated within their specific module, this issue exhibits scope change characteristics, meaning that while the technical flaw is located in the Shopping Cart component, successful exploitation can lead to broader system compromises affecting additional products and services integrated with or dependent on Oracle E-Business Suite. This lateral movement potential amplifies the severity of the threat beyond a simple local data exposure incident.
From a technical perspective, the core issue facilitates unauthorized access to critical data stored within the application database. The CVSS 3.1 base score of 7.7 indicates a High severity rating, primarily driven by high impacts on confidentiality. The vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) confirms that the attack requires no user interaction and involves low complexity, yet it demands local or network-level privileges to initiate. This profile suggests a flaw in access control logic or input validation within the shopping cart processing routines, allowing authenticated but unprivileged users to bypass intended restrictions and retrieve sensitive information such as customer personally identifiable information, payment details, order histories, or internal business data that should remain restricted to higher-privilege administrative accounts.
The operational impact of this vulnerability is substantial for organizations relying on Oracle E-Business Suite for their e-commerce operations. Unauthorized access to critical data can lead to severe regulatory compliance violations under frameworks such as GDPR, CCPA, and PCI-DSS due to the exposure of sensitive customer information. Furthermore, the ability to compromise additional products through scope change implies that attackers could potentially pivot from the iStore module to other enterprise resource planning or supply chain modules within the suite, leading to a comprehensive breach of organizational data assets. This not only results in direct financial loss and reputational damage but also exposes the organization to further exploitation vectors if the compromised credentials are used for privilege escalation attacks against more critical backend systems.
To mitigate this risk, organizations must immediately apply the latest security patches provided by Oracle that address this specific vulnerability within the Shopping Cart component of iStore. It is imperative to verify patch levels across all instances running version 12.2.3 through 12.2.15. In addition to patching, implementing network segmentation strategies can help limit exposure by restricting HTTP access to the iStore components from untrusted networks. Deploying Web Application Firewalls with rulesets tuned for Oracle E-Business Suite vulnerabilities can provide an additional layer of defense against exploitation attempts. Regular security assessments and penetration testing focused on authentication bypass and data leakage scenarios are recommended to ensure that compensating controls remain effective and that no residual exposure exists within the application logic.