CVE-2026-14175 Overview
CVE-2026-14175 is an unrestricted file upload vulnerability in HUMANIST Digital Human Resources, developed by Bilin Software and Informatics Consultancy Inc. The flaw allows attackers to upload files of dangerous types, including web shells, directly to the web server. The vulnerability affects HUMANIST Digital Human Resources versions from 26.0 before 26.1. Successful exploitation grants attackers remote code execution capabilities on the underlying web server. The weakness is classified under CWE-434, Unrestricted Upload of File with Dangerous Type.
Critical Impact
Unauthenticated attackers can upload a web shell over the network and achieve full remote code execution on affected HUMANIST HR deployments.
Affected Products
- HUMANIST Digital Human Resources 26.0
- HUMANIST Digital Human Resources versions after 26.0 and before 26.1
- Vendor: Bilin Software and Informatics Consultancy Inc.
Discovery Timeline
- 2026-08-04 - CVE-2026-14175 published to NVD
- 2026-08-04 - Last updated in NVD database
Technical Details for CVE-2026-14175
Vulnerability Analysis
The vulnerability resides in the file upload functionality of HUMANIST Digital Human Resources. The application accepts uploaded files without adequately validating file type, extension, or content. Attackers can submit executable server-side scripts, such as web shells, that the web server subsequently processes as code.
The attack is reachable over the network and requires no authentication or user interaction. Once a web shell lands in a web-accessible directory, the attacker gains an interactive command channel to the host. From that foothold, attackers can read HR data, pivot into internal networks, or persist through additional payloads.
Root Cause
The root cause is missing or insufficient validation of uploaded file contents and extensions (CWE-434). The application does not enforce an allowlist of safe MIME types, does not verify magic bytes, and stores uploads inside a directory that the web server executes as script content.
Attack Vector
An attacker sends a crafted HTTP request to the vulnerable upload endpoint containing a server-side script disguised as a legitimate HR document or media file. The server writes the payload to a web-accessible location. The attacker then requests the uploaded file directly through the browser, triggering execution of the web shell in the context of the web server process.
No verified proof-of-concept code is publicly available. For technical details, refer to the Siber Güvenlik Notification TR-26-0737.
Detection Methods for CVE-2026-14175
Indicators of Compromise
- New or unexpected files with executable extensions (.aspx, .ashx, .jsp, .php) inside HUMANIST upload directories.
- HTTP POST requests to file upload endpoints followed by GET requests to newly created files in the same path.
- Web server processes spawning command interpreters such as cmd.exe, powershell.exe, or /bin/sh.
- Outbound connections from the HUMANIST application server to unfamiliar external IP addresses.
Detection Strategies
- Monitor web server logs for uploads that immediately precede requests to files with script extensions in upload paths.
- Inspect file writes in HUMANIST web directories and alert on any file whose extension differs from the declared MIME type.
- Correlate authentication events with upload activity to surface unauthenticated or anomalous upload sessions.
Monitoring Recommendations
- Enable process-lineage telemetry on the HUMANIST application server to catch web-server processes launching shells or scripting hosts.
- Forward web access logs and file integrity events to a centralized SIEM for correlation across the environment.
- Baseline normal upload volumes and file types, then alert on deviations such as unusual extensions or oversized payloads.
How to Mitigate CVE-2026-14175
Immediate Actions Required
- Upgrade HUMANIST Digital Human Resources to version 26.1 or later, which contains the vendor fix.
- Audit HUMANIST upload directories for unauthorized files and remove any confirmed web shells.
- Rotate application, database, and service account credentials used by the HUMANIST server if compromise is suspected.
- Restrict network access to the HUMANIST management interface until the patch is applied.
Patch Information
The vendor addresses the vulnerability in HUMANIST Digital Human Resources version 26.1. Deployments running versions from 26.0 up to but not including 26.1 remain exposed. Administrators should consult the Siber Güvenlik Notification TR-26-0737 for vendor-specific upgrade guidance.
Workarounds
- Place a web application firewall in front of HUMANIST and block requests that upload files with executable extensions.
- Configure the web server so upload directories cannot execute scripts, using directives such as php_admin_flag engine off or equivalent handler removal.
- Enforce authentication and role checks on all upload endpoints and restrict access to trusted networks with IP allowlisting.
- Apply file integrity monitoring to HUMANIST web roots to detect unauthorized file creation in real time.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
