CVE-2026-60766 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 HTTPS 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).
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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 Siebel backend services. Because the vulnerability is classified as difficult to exploit, it suggests that while an attacker does not require prior authentication credentials, they must possess a sophisticated understanding of the application's internal logic or specific state conditions to successfully trigger the malicious behavior. This complexity acts as a slight deterrent but does not eliminate the threat posed by determined adversaries with advanced capabilities.
From a technical perspective, the flaw allows an unauthenticated actor who has network access via HTTPS to compromise the integrity and confidentiality of the Siebel CRM Integration system. The absence of mandatory authentication checks for certain REST endpoints or specific parameters within authenticated sessions enables attackers to bypass standard security boundaries. By leveraging this weakness, an attacker can execute unauthorized operations that manipulate critical data structures. This includes creating new records with malicious intent, deleting essential historical or operational data, and modifying existing information without authorization. Such actions directly undermine the reliability of the CRM system, potentially leading to corrupted customer profiles, inaccurate sales forecasts, and compromised communication logs. The ability to alter data at this level indicates a severe breach in input validation and privilege verification processes within the application layer.
The operational impact of exploiting this vulnerability is substantial, primarily affecting the confidentiality and integrity aspects of the CIA triad as reflected by the CVSS 3.1 base score of 7.4. The high confidence rating for both confidentiality and integrity impacts signifies that successful exploitation can lead to unauthorized access to sensitive customer information, such as personal identifiable data, financial records, or proprietary business strategies. Furthermore, the ability to delete or modify critical data poses a direct threat to business continuity and regulatory compliance. Organizations may face significant reputational damage, legal liabilities under regulations like GDPR or CCPA, and operational disruptions due to corrupted datasets. The attack vector being network-accessible via HTTPS means that this vulnerability can potentially be exploited remotely over the internet if the service is exposed, although the difficulty of exploitation suggests it requires targeted effort rather than automated widespread scanning success.
In terms of industry standard classifications, this vulnerability aligns with CWE-287 Improper Authentication and CWE-918 SQL Injection or other injection flaws depending on the specific implementation details within the REST handler, though broadly it falls under insufficient access control mechanisms often categorized under CWE-862 Missing Authorization. From a tactical standpoint as defined by MITRE ATT&CK, this behavior corresponds to techniques involving unauthorized API access and data manipulation, potentially mapping to T1078 Valid Accounts if credentials are stolen or bypassed, but more accurately reflecting initial exploitation vectors that lead to privilege escalation within the application context. The lack of authentication requirement places it in a category similar to unauthenticated remote code execution patterns where the attacker gains foothold without prior identity verification.
To mitigate this risk, organizations should immediately apply the latest security patches provided by Oracle for their specific Siebel CRM Integration version. It is crucial to verify that all systems are updated beyond the affected range or have the specific hotfixes applied as recommended in Oracle Security Alerts. Additionally, implementing strict network segmentation and firewall rules can help restrict access to the REST API endpoints only from trusted IP addresses or internal networks where possible. Deploying a Web Application Firewall with advanced rule sets capable of detecting anomalous REST requests may provide an additional layer of defense by blocking exploit attempts before they reach the application logic. Regular security assessments and penetration testing focused on authentication bypasses and data manipulation vulnerabilities are also recommended to ensure that no other similar weaknesses exist within the integration components. Monitoring logs for unusual patterns in API usage, such as high volumes of unauthenticated requests or rapid successive modifications to critical records, can aid in early detection of attempted exploitation activities.