CVE-2016-8300 in FLEXCUBE Private Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Private Banking component of Oracle Financial Services Applications (subcomponent: Product / Instrument Search). Supported versions that are affected are 2.0.1, 2.2.0 and 12.0.1. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Private Banking. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle FLEXCUBE Private Banking accessible data. CVSS v3.0 Base Score 5.3 (Confidentiality impacts).
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Analysis
by VulDB Data Team • 05/15/2026
The vulnerability identified as CVE-2016-8300 resides within Oracle FLEXCUBE Private Banking, a critical financial services application designed for private banking operations. This weakness specifically affects the Product/Instrument Search subcomponent, which serves as a fundamental interface for financial product management and instrument discovery within the banking ecosystem. The affected versions 2.0.1, 2.2.0, and 12.0.1 represent widely deployed iterations of this financial software that organizations rely upon for core banking operations. The vulnerability's classification as difficult to exploit indicates that while it requires some technical skill and knowledge to leverage, the attack surface remains accessible to determined threat actors who can establish network connectivity through standard HTTP protocols.
This security flaw manifests as a privilege escalation vulnerability that operates at the application layer, allowing attackers with minimal privileges to gain unauthorized access to sensitive financial data. The technical implementation appears to lack proper access controls or input validation within the search functionality, enabling malicious actors to bypass authentication mechanisms and traverse system boundaries. The CVSS v3.0 base score of 5.3 reflects the moderate severity of the confidentiality impact, though the potential for complete data compromise makes this vulnerability particularly concerning for financial institutions handling sensitive customer information, transaction records, and proprietary banking data. The vulnerability's design flaw likely involves insufficient authorization checks during search operations, allowing unauthorized users to access data they should not be permitted to view.
The operational impact of this vulnerability extends beyond simple data theft, as it can lead to complete compromise of the affected Oracle FLEXCUBE Private Banking environment. Attackers could potentially access all accessible data within the system, including customer account details, transaction histories, financial instruments, and other confidential banking information. This represents a significant risk to financial institutions' data integrity and regulatory compliance, particularly under frameworks such as pci dss, soc 2, and various banking regulations requiring strict data protection measures. The vulnerability's network-based attack vector through HTTP means that attackers do not require physical access or insider knowledge to exploit the weakness, making it particularly dangerous in environments where network exposure is inevitable.
Organizations should implement immediate mitigations including applying the vendor-provided patches and updates released by Oracle to address this vulnerability. Network segmentation and access controls should be strengthened to limit exposure of the affected components, while monitoring systems should be enhanced to detect anomalous search patterns or unauthorized access attempts. The vulnerability aligns with CWE-284 (Improper Access Control) and may map to ATT&CK technique T1078 (Valid Accounts) and T1566 (Phishing) in threat actor behavior patterns. Regular security assessments and penetration testing should be conducted to identify similar access control weaknesses within the broader financial services application landscape, as this vulnerability demonstrates how seemingly routine search functionality can become a critical attack surface requiring careful security design and implementation.