CVE-2026-87407 in Applications Framework
Summary
by MITRE • 10/21/2026
Vulnerability in the Oracle Applications Framework product of Oracle E-Business Suite (component: Security). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Applications Framework. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Applications Framework accessible data. CVSS 3.1 Base Score 6.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 10/21/2026
The identified vulnerability resides within the Security component of Oracle Applications Framework, a core part of the Oracle E-Business Suite platform affecting versions ranging from 12.2.3 through 12.2.15. This flaw represents a significant security deficiency that allows for unauthorized access to sensitive organizational data without requiring prior authentication credentials. The nature of this vulnerability is particularly concerning because it can be exploited remotely over the network via standard HTTP protocols, meaning attackers do not need direct physical or internal network access to initiate an exploit. While the attack vector is remote and requires low complexity in terms of technical execution, the requirement for human interaction serves as a partial mitigation factor that may reduce the likelihood of successful exploitation in environments with strong user awareness training.
From a technical perspective, this vulnerability aligns closely with CWE-200, which encompasses exposure of sensitive information to unauthorized actors, and potentially CWE-798 if it involves improper access control mechanisms such as default credentials or missing authentication checks on specific endpoints. The operational impact is severe regarding data confidentiality but limited in terms of integrity and availability within the context of this specific CVSS scoring. An attacker who successfully exploits this flaw can gain unauthorized access to critical business data stored within the Oracle Applications Framework. This could include financial records, customer personal information, employee details, or proprietary intellectual property depending on the organization's deployment configuration. The ability to read all accessible data effectively compromises the confidentiality pillar of the CIA triad for any system relying on these affected versions.
In terms of threat modeling and adversary behavior, this vulnerability maps to several techniques within the MITRE ATT&CK framework. It is consistent with T1078 Valid Accounts if the exploitation involves leveraging weak or default credentials that are not properly secured by the application logic. Furthermore, it relates to T1539 Steal Web Session Cookie if the attack vector exploits session management flaws to hijack active user sessions without needing passwords. The requirement for human interaction suggests social engineering tactics may be employed, such as phishing links designed to trigger the vulnerable code path when a legitimate employee clicks on them or interacts with specific UI elements that expose the underlying security flaw. This makes the vulnerability particularly dangerous in enterprise environments where users frequently interact with web-based applications daily.
The CVSS 3.1 base score of 6.5 reflects a medium severity level, driven primarily by high confidentiality impact and low attack complexity despite the requirement for user interaction. The vector string AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N indicates that while no privileges are needed to start the attack, the scope remains unchanged meaning the attacker cannot directly affect other components beyond what is accessible through this specific framework module. However, in practice, lateral movement or further exploitation may be possible if the compromised data provides insights into network topology or additional credentials. Organizations must recognize that even medium-severity vulnerabilities can lead to significant breaches when combined with social engineering or when they serve as an entry point for more complex attack chains involving privilege escalation later on.
Mitigation strategies should prioritize immediate patching of all Oracle E-Business Suite instances running versions 12.2.3 through 12.2.15 using the latest security patches provided by Oracle. Until patches are applied, organizations should implement strict network segmentation to limit HTTP access to only necessary IP ranges and enforce multi-factor authentication for any remaining authenticated interfaces if applicable. Web Application Firewalls can be configured with specific rulesets to detect and block exploit attempts targeting this vulnerability pattern. Additionally, enhancing user security awareness programs is critical given the human interaction requirement; employees should be trained to recognize suspicious links or interactions that might trigger such vulnerabilities. Regular auditing of access logs for anomalous data retrieval patterns can also help in early detection of potential exploitation activities before significant damage occurs.