CVE-2026-14175 in Humanist Digital Human Resources
Summary
by MITRE • 08/04/2026
Unrestricted upload of file with dangerous type vulnerability in Bilin Software and Informatics Consultancy Inc. HUMANIST Digital Human Resources allows Upload a Web Shell to a Web Server.
This issue affects HUMANIST Digital Human Resources: from 26.0 before 26.1.
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Analysis
by VulDB Data Team • 08/04/2026
The vulnerability under examination represents a critical unrestricted file upload flaw within the HUMANIST Digital Human Resources system developed by Bilin Software and Informatics Consultancy Inc. This security weakness enables unauthorized attackers to bypass normal file validation mechanisms and upload malicious files directly to the web server. The specific nature of this vulnerability allows for the successful deployment of web shells, which fundamentally compromises the entire application and underlying server infrastructure.
This type of vulnerability falls under the broader category of insecure file handling within web applications and aligns with CWE-434, which describes "Unrestricted Upload of File with Dangerous Type." The flaw occurs when applications fail to properly validate file types, extensions, or content before accepting uploads, creating an avenue for attackers to execute arbitrary code on the target system. The vulnerability is particularly severe because it directly enables remote code execution capabilities through web shell deployment.
The operational impact of this vulnerability extends beyond simple data compromise to include complete system takeover potential. When an attacker successfully uploads a web shell, they gain persistent access to the server environment and can perform various malicious activities including data exfiltration, privilege escalation, lateral movement within the network, and establishment of backdoors for continued access. The affected version range from 26.0 through the pre-release state before 26.1 indicates that this was a known issue that required immediate patching to prevent exploitation.
The technical exploitation of this vulnerability typically involves bypassing client-side validation through direct API calls or manual request manipulation, uploading malicious payloads with extensions like .asp, .aspx, .php, or other server-side script extensions that the web application accepts without proper sanitization. This flaw can be classified under ATT&CK technique T1505.003 for "Server Software Component" and T1078.004 for "Valid Accounts" when attackers leverage compromised credentials to upload malicious files. The vulnerability demonstrates a critical failure in input validation and access control mechanisms that should prevent unauthorized file modifications.
Mitigation strategies must address both immediate remediation and long-term architectural improvements to prevent similar issues. Organizations should implement strict file type validation using server-side checks that verify MIME types, file signatures, and content analysis rather than relying solely on client-side or extension-based restrictions. The system requires comprehensive access controls with proper authentication mechanisms and regular security audits to identify and remediate such vulnerabilities before they can be exploited by threat actors. Additionally, implementing network segmentation, web application firewalls, and continuous monitoring solutions provides defense-in-depth measures that can detect and prevent exploitation attempts.
The vulnerability represents a classic example of how insufficient input validation combined with weak access controls can create catastrophic security implications for enterprise applications. Organizations using this software must urgently apply the available patch to version 26.1 or higher to eliminate this attack vector. The remediation process should include comprehensive security testing, including penetration testing and static code analysis, to ensure that similar vulnerabilities do not exist within the application's codebase. Regular security training for development teams regarding secure coding practices, particularly around file handling and input validation, is essential to prevent future occurrences of such critical flaws in the software development lifecycle.
Security professionals should note that this vulnerability type frequently appears in legacy applications where security was not adequately considered during initial development phases. The presence of web shell upload capabilities indicates a fundamental breakdown in application security architecture that requires immediate attention and comprehensive security hardening measures. Organizations must adopt systematic approaches to vulnerability management including regular security assessments, automated scanning tools, and incident response procedures specifically designed to handle such critical exploitation scenarios.
The technical nature of this vulnerability emphasizes the importance of proper security controls throughout the software development lifecycle, particularly in applications handling sensitive human resources data. The combination of unrestricted file upload capabilities with potential web shell deployment creates a severe risk profile that can lead to complete system compromise and unauthorized access to confidential personnel information. This vulnerability serves as a reminder of the critical need for robust input validation, proper file handling procedures, and comprehensive security testing during application development and maintenance phases.