CVE-2025-65897 affects the zdh_web platform, a system used for data collection, processing, monitoring, scheduling, and management. The vulnerability arises from insufficient validation of file upload paths, allowing authenticated users to write arbitrary files anywhere on the server's filesystem. This improper validation can be exploited to overwrite existing files, including system or application binaries, configuration files, or scripts, which may lead to privilege escalation or remote code execution. The vulnerability is classified under CWE-22 (Path Traversal) and CWE-434 (Unrestricted File Upload), indicating that attackers can manipulate file paths to escape intended directories and upload potentially dangerous files. The CVSS v3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity and requiring only low privileges (authenticated user). No user interaction is needed, and the scope remains unchanged as the attack affects the vulnerable component only. Although no known exploits are currently in the wild, the vulnerability poses a significant risk if weaponized. The lack of available patches at the time of publication necessitates immediate attention to mitigation strategies. Organizations relying on zdh_web should audit their file upload mechanisms, restrict permissions, and monitor for anomalous file system activity to reduce risk.

For European organizations, exploitation of CVE-2025-65897 could result in severe consequences including unauthorized access to sensitive data, disruption of critical business processes, and potential full system compromise. Given zdh_web's role in data management and scheduling, successful attacks could lead to manipulation or destruction of operational data, impacting decision-making and service continuity. Privilege escalation or remote code execution could allow attackers to move laterally within networks, escalate privileges to administrative levels, and deploy persistent malware or ransomware. This threat is particularly concerning for sectors such as finance, manufacturing, healthcare, and government agencies where data integrity and availability are critical. The high CVSS score underscores the potential for significant confidentiality breaches, integrity violations, and service outages. Additionally, the requirement for authentication means insider threats or compromised credentials could facilitate exploitation. The absence of public exploits currently provides a window for proactive defense, but also indicates the need for vigilance as attackers may develop exploits rapidly.

1. Immediately audit and restrict file upload functionality to only allow necessary file types and enforce strict path validation and sanitization to prevent directory traversal. 2. Implement server-side checks to verify that uploaded files are stored only within designated directories with no possibility of escaping to critical system paths. 3. Apply the principle of least privilege to the application and web server accounts, ensuring they have minimal write permissions limited to required directories. 4. Monitor file system changes and logs for unusual activity, such as unexpected file overwrites or uploads outside normal directories. 5. Employ Web Application Firewalls (WAFs) with rules to detect and block suspicious file upload patterns or path traversal attempts. 6. Enforce multi-factor authentication and strong credential management to reduce risk from compromised accounts. 7. Stay updated with vendor advisories for patches or official fixes and plan for timely deployment once available. 8. Conduct regular security assessments and penetration testing focusing on file upload mechanisms. 9. Consider isolating the zdh_web platform in segmented network zones to limit lateral movement if compromised. 10. Educate users with upload permissions about secure practices and risks associated with file uploads.