Critical Vulnerabilities in HUMANIST Digital Human Resources

Multiple critical vulnerabilities have been identified in Bilin Software and Informatics Consultancy Inc. HUMANIST Digital Human Resources version 26.0. These include a hard-coded cryptographic key (CVE-2026-14804), an unrestricted file upload leading to remote code execution (CVE-2026-14175), a SQL injection vulnerability (CVE-2026-15721), and a session-hijacking issue via sensitive query strings (CVE-2026-14838). Successful exploitation can lead to unauthorized access, decryption of protected HR data, full system compromise, and unauthorized modification of employee records. The vendor has addressed these issues in version 26.1. Defenders should prioritize updating to the patched version immediately.

Hard-coded Cryptographic Key (CVE-2026-14804)

A high-severity vulnerability (CVE-2026-14804) has been identified in Bilin Software and Informatics Consultancy Inc. HUMANIST Digital Human Resources version 26.0. The software improperly utilizes hard-coded cryptographic keys within its executable, which can be extracted by an unauthorized actor to access sensitive constants. This vulnerability allows for the potential decryption of protected data or the bypass of security mechanisms managed by the platform.

Impact

Successful exploitation of this vulnerability allows unauthorized actors to read sensitive constants embedded in the application executable. This could lead to full unauthorized access to the application, potential decryption of sensitive business data, and compromise of PII/HR records managed by the system. Given the CVSS score of 9.1, this represents a critical risk to data confidentiality and integrity for organizations utilizing the affected software version.

Unrestricted File Upload / Remote Code Execution (CVE-2026-14175)

CVE-2026-14175 is a critical vulnerability identified in Bilin Software and Informatics Consultancy Inc. HUMANIST Digital Human Resources software, specifically affecting versions 26.0 prior to 26.1. The vulnerability is categorized as CWE-434: Unrestricted Upload of File with Dangerous Type. Due to insufficient input validation during the file upload process, an unauthenticated attacker can bypass existing security controls to upload malicious files, such as web shells, directly to the web server's document root. Once uploaded, these files can be executed by navigating to their URL, leading to complete remote code execution (RCE) with the privileges of the web server process. The vulnerability has been assigned a CVSS v3.1 base score of 9.8, reflecting its high impact on confidentiality, integrity, and availability.

Attack Chain

1. The attacker performs reconnaissance to identify a target running an instance of HUMANIST Digital Human Resources version 26.0.
2. The attacker navigates to an exposed file upload interface within the application.
3. The attacker crafts a malicious request containing a web shell (e.g., .php, .aspx, or .jsp) as the file payload.
4. The attacker sends the POST request to the server-side upload endpoint, exploiting the lack of file type validation.
5. The server stores the malicious file in a directory that is accessible via the web server's request handling logic.
6. The attacker navigates to the URL corresponding to the uploaded file path to trigger the execution of the web shell.
7. The web server process executes the malicious script.
8. The attacker achieves persistent command execution, enabling further exploitation, exfiltration, or lateral movement.

Impact

Successful exploitation of CVE-2026-14175 allows an unauthenticated, remote attacker to execute arbitrary commands on the affected web server. This can lead to total system compromise, including the theft of sensitive human resources data, unauthorized modification of employee records, or the deployment of additional malware within the corporate environment. Given the high privileges typically associated with web service accounts, an attacker could potentially escalate to full domain or network access.

Recommendation

Prioritized, concrete actions for detection engineering teams:

• Upgrade to HUMANIST Digital Human Resources version 26.1 or later to remediate all identified CVEs immediately.
• Deploy the Sigma rule provided above to web server logs to detect potential exploitation attempts.
• Audit existing web server directories for unauthorized files uploaded since the last deployment, specifically looking for script extensions in upload-designated folders.
• Audit administrative access logs for the HUMANIST application for unauthorized sessions that correlate with the exploitation timeframe.
• Implement strict ingress filtering and web application firewall (WAF) rules to restrict access to upload endpoints to trusted IP addresses only.
• If upgrading immediately is not possible, place the HUMANIST application behind a restricted WAF or VPN to limit exposure to unauthenticated network access.