CVE-2026-60820 in Siebel CRM Integration
Summary
by MITRE • 08/19/2026
Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: REST). Supported versions that are affected are 17.0-26.6. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Integration. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Siebel CRM Integration accessible data as well as unauthorized access to critical data or complete access to all Siebel CRM Integration accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the REST API component of Oracle Siebel CRM Integration, specifically affecting supported versions ranging from 17.0 through 26.6. This security flaw represents a significant risk to organizations relying on this enterprise resource planning and customer relationship management platform for critical business operations. The core issue stems from insufficient access control mechanisms or improper validation within the RESTful interface, which serves as the primary communication channel between external clients and the backend Siebel CRM Integration services. Because the vulnerability is classified as difficult to exploit due to high complexity requirements in its attack vector, it suggests that while automated scanning tools may not easily detect this flaw, a skilled attacker with specific knowledge of the application's internal logic or state management can leverage it effectively. The presence of network access via HTTP indicates that the exploitation does not require physical proximity or local system privileges on the target server, allowing remote adversaries to initiate attacks over standard web protocols without needing user interaction or complex social engineering tactics beyond initial reconnaissance.
From a technical perspective, the flaw allows an unauthenticated attacker to bypass authentication checks when interacting with specific REST endpoints. This lack of proper authorization enforcement enables malicious actors to perform unauthorized operations that should be restricted to authenticated and privileged users. The operational impact is severe, encompassing both confidentiality and integrity breaches as reflected in the CVSS 3.1 base score of 7.4. An attacker who successfully exploits this vulnerability can create, delete, or modify critical data within the Siebel CRM Integration system. This capability extends beyond simple data viewing; it allows for active manipulation of business records, customer information, and transactional history stored in the database. Furthermore, the vulnerability grants unauthorized access to sensitive data that is typically protected by role-based access controls. In worst-case scenarios, this can lead to complete compromise of all accessible Siebel CRM Integration data, resulting in significant financial loss, regulatory non-compliance, and reputational damage for the affected organization.
The attack vector aligns with several common weakness categories defined by industry standards. Specifically, this vulnerability maps closely to CWE-287 Improper Authentication, where the system fails to correctly verify the identity of a user or process before granting access to resources. Additionally, it relates to CWE-862 Missing Authorization, as the application does not enforce appropriate policies on authenticated users regarding which actions they are permitted to perform. In terms of offensive security frameworks such as MITRE ATT&CK, this behavior corresponds to techniques involving unauthorized API access and data exfiltration or manipulation via web services. The high complexity requirement noted in the CVSS vector suggests that the attacker must navigate specific application states or exploit race conditions, making it less susceptible to widespread automated worm-like propagation but highly dangerous when targeted by determined adversaries with insider knowledge or advanced persistent threat capabilities.
To mitigate this vulnerability, organizations running affected versions of Oracle Siebel CRM Integration should immediately apply the latest security patches provided by Oracle for their respective version lines. Since the exploitation occurs over HTTP, it is critical to ensure that all REST API communications are encrypted using TLS 1.2 or higher to prevent eavesdropping and man-in-the-middle attacks during transit, although this does not replace the need for fixing the underlying authentication flaw. Implementing a Web Application Firewall with rules specifically tuned to detect anomalous REST API behavior can provide an additional layer of defense by blocking requests that exhibit patterns consistent with exploitation attempts. Furthermore, organizations should conduct thorough access control reviews to ensure that no legacy or deprecated endpoints remain exposed without proper security controls. Regular vulnerability assessments and penetration testing focused on API security are recommended to identify similar misconfigurations before they can be exploited in a production environment.