CVE-2025-11318 is a security vulnerability identified in Tipray 厦门天锐科技股份有限公司's Data Leakage Prevention System (DLP) version 1.0. The flaw resides in the file upload functionality exposed via the uploadWxFile.do endpoint, where the 'File' parameter is insufficiently validated, allowing attackers to upload arbitrary files without any restrictions. This unrestricted upload vulnerability can be exploited remotely without authentication or user interaction, making it highly accessible to attackers. The CVSS 4.0 base score is 6.9 (medium severity), reflecting the potential for partial impact on confidentiality, integrity, and availability. The vulnerability could enable attackers to upload malicious payloads such as web shells or malware, leading to unauthorized access, data exfiltration, or disruption of services. The vendor was notified early but has not issued any patches or advisories, and although no active exploitation has been reported, the exploit code is publicly available, increasing the risk of future attacks. The vulnerability affects only version 1.0 of the product, which is a data leakage prevention system designed to monitor and control sensitive data flows within organizations. Given the critical role of DLP systems in protecting sensitive information, exploitation could undermine an organization's data security posture significantly.

For European organizations, exploitation of this vulnerability could result in unauthorized data exposure, manipulation, or destruction, undermining compliance with strict data protection regulations such as GDPR. The ability to upload arbitrary files remotely without authentication could allow attackers to deploy web shells or malware, facilitating further network compromise and lateral movement. This could lead to intellectual property theft, leakage of personal data, and operational disruptions. Organizations relying on Tipray's DLP system for sensitive data protection may find their defenses bypassed, increasing the risk of data breaches and regulatory penalties. The lack of vendor response and patches exacerbates the risk, as organizations must rely on compensating controls. The medium severity rating indicates a significant but not critical risk, yet the potential for data leakage and system compromise remains substantial, especially in sectors handling sensitive or regulated data.

Since no official patch is available, European organizations should implement immediate compensating controls. These include restricting access to the uploadWxFile.do endpoint via network segmentation and firewall rules, allowing only trusted internal IPs to reach the service. Deploy web application firewalls (WAFs) with custom rules to detect and block suspicious file upload patterns or payloads. Conduct thorough monitoring and logging of file upload activities to identify anomalous behavior promptly. Employ file integrity monitoring and endpoint detection and response (EDR) solutions to detect potential post-exploitation activities. If feasible, disable or restrict the file upload functionality temporarily until a patch or vendor guidance is available. Organizations should also consider isolating the affected DLP system from critical network segments to limit potential lateral movement. Regularly review and update incident response plans to address potential exploitation scenarios. Engage with the vendor for updates and consider alternative DLP solutions if the vendor remains unresponsive.