CVE-2025-40661 in DM Corporative CMS
Summary
by MITRE • 06/10/2025
An Insecure Direct Object Reference (IDOR) vulnerability has been found in DM Corporative CMS. This vulnerability allows an attacker to access the private area setting the option parameter equal to 0, 1 or 2 in /administer/selectionnode/selection.asp.
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Analysis
by VulDB Data Team • 06/10/2025
The identified vulnerability CVE-2025-40661 represents a critical Insecure Direct Object Reference flaw within the DM Corporative CMS administrative interface. This weakness stems from insufficient input validation and access control mechanisms that permit unauthorized users to manipulate the option parameter within the /administer/selectionnode/selection.asp endpoint. The vulnerability manifests when attackers set the option parameter to specific integer values of 0, 1, or 2, which effectively bypasses intended authorization checks and grants access to restricted administrative functions.
This type of vulnerability falls under CWE-284 which categorizes improper access control issues, specifically targeting the principle of least privilege and proper authorization enforcement. The flaw operates at the application logic level where the system fails to validate whether the authenticated user possesses appropriate permissions to access the requested administrative resources. The attack vector is particularly concerning as it requires minimal complexity to exploit, making it attractive to both automated scanning tools and skilled attackers seeking to escalate privileges within the CMS environment.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it potentially allows attackers to manipulate core administrative settings and configuration parameters. When the option parameter is set to 0, 1, or 2, the system appears to process these values without proper authorization verification, enabling malicious actors to traverse administrative interfaces they should not have access to. This could result in data manipulation, unauthorized configuration changes, privilege escalation, and potentially full system compromise depending on the underlying functionality of the affected administrative endpoints.
Security professionals should recognize this vulnerability as a prime example of how insufficient input sanitization and access control validation can create severe security gaps in content management systems. The ATT&CK framework categorizes this as a privilege escalation technique under T1078 - Valid Accounts and T1548.001 - Abuse Elevation Control Mechanism, where attackers leverage weak access controls to gain higher privileges. Organizations utilizing DM Corporative CMS must immediately implement proper parameter validation, enforce strict access controls, and conduct comprehensive security testing to identify similar weaknesses in their application logic.
Mitigation strategies should include implementing robust input validation mechanisms that reject unauthorized parameter values, enforcing proper authentication checks before processing administrative requests, and establishing role-based access controls that ensure users can only access functionality appropriate to their assigned permissions. Additionally, developers should implement proper logging and monitoring of administrative activities to detect anomalous parameter usage patterns that may indicate exploitation attempts. The vulnerability demonstrates the critical importance of following secure coding practices and conducting regular security assessments to identify and remediate access control weaknesses in web applications.