CVE-2026-93462 in baserCMS
Summary
by MITRE • 09/30/2026
Missing authentication for critical function vulnerability exists in baserCMS . If a remote unauthenticated attacker there is a possibility that sensitive information could be obtained.
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Analysis
by VulDB Data Team • 09/30/2026
The identified vulnerability in baserCMS represents a critical failure in access control mechanisms, specifically categorized under CWE-306: Missing Authentication for Critical Function. This flaw indicates that the application fails to verify the identity of users before granting them access to specific administrative or sensitive operations. In a properly secured web environment, any request targeting privileged endpoints must be accompanied by valid authentication credentials and session tokens. The absence of these checks allows unauthenticated actors to interact with functions intended only for authorized administrators or system operators. This type of vulnerability is frequently exploited in conjunction with other flaws but can also stand alone as a direct path to compromise if the exposed function performs high-impact actions such as configuration changes, data deletion, or user management.
From an operational perspective, this lack of authentication creates a significant risk for confidentiality and integrity violations. An attacker who discovers these unprotected endpoints can retrieve sensitive information that is not meant for public consumption. This may include database connection strings, internal server configurations, user lists with hashed passwords, or proprietary business logic embedded in the application code. The ability to access such data without prior authentication undermines the fundamental security principle of least privilege and exposes the organization to further exploitation vectors. For instance, obtained credentials could be subjected to offline brute-force attacks, while exposed configuration details might reveal infrastructure weaknesses that facilitate lateral movement within a network.
The attack vector associated with this vulnerability aligns closely with techniques observed in the MITRE ATT&CK framework, particularly those involving unauthorized access to resources or data exfiltration via unauthenticated API calls. Attackers typically utilize automated scanning tools to probe for common administrative paths such as /admin, /setup, or specific controller actions that lack proper middleware checks. Once a vulnerable endpoint is identified, the attacker can issue HTTP requests directly from their client without logging in. This simplicity makes the vulnerability highly exploitable and increases the likelihood of successful compromise, especially if the application does not implement additional mitigating controls like rate limiting or IP-based access restrictions for administrative interfaces.
To mitigate this risk, immediate remediation efforts should focus on enforcing strict authentication checks at both the framework level and individual controller methods. Developers must ensure that all critical functions require valid session tokens or API keys before processing requests. Implementing a centralized middleware layer that validates user permissions across the application can prevent such oversights in new code development. Additionally, it is advisable to restrict access to administrative interfaces by IP address using web server configurations or reverse proxy rules, adding an extra layer of defense-in-depth. Regular security audits and static analysis testing should be integrated into the software development lifecycle to detect missing authentication logic early. Keeping baserCMS updated to the latest version where this issue has been patched is also essential for maintaining a secure posture against known exploitation patterns.