CVE-2025-34163 is a critical vulnerability identified in Qingdao Dongsheng Weiye Software Co., Ltd.'s Dongsheng Logistics Software. The flaw arises from an unauthenticated endpoint located at /CommMng/Print/UploadMailFile that improperly handles file uploads. Specifically, the endpoint lacks adequate file type validation and access control, allowing an attacker to upload arbitrary files, including executable scripts such as .ashx files, via a crafted multipart/form-data POST request. This vulnerability is classified under CWE-434, which pertains to the unrestricted upload of files with dangerous types. Exploiting this vulnerability enables remote code execution (RCE) on the affected server, potentially leading to full system compromise without requiring any authentication or user interaction. The vulnerability affects all builds released prior to July 2025, with newer versions reportedly remediating the issue, although the exact version range affected is not clearly defined. The vulnerability was first observed being exploited or scanned for by the Shadowserver Foundation on July 23, 2025. The CVSS v4.0 score is 10.0, reflecting its critical severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on confidentiality, integrity, and availability. This vulnerability poses a significant risk to organizations using Dongsheng Logistics Software, as it could allow attackers to execute arbitrary code remotely, potentially leading to data breaches, disruption of logistics operations, and further lateral movement within the network.

For European organizations utilizing Dongsheng Logistics Software, this vulnerability presents a severe threat. Logistics software is often integral to supply chain management, inventory control, and distribution operations. Successful exploitation could lead to unauthorized access to sensitive operational data, disruption of logistics workflows, and potential manipulation or destruction of critical data. This could result in operational downtime, financial losses, reputational damage, and regulatory compliance issues, especially under GDPR if personal data is compromised. The ability to execute arbitrary code remotely without authentication significantly raises the risk profile, as attackers can deploy malware, ransomware, or establish persistent backdoors. Given the interconnected nature of logistics and supply chains across Europe, a compromise in one organization could cascade, affecting partners and clients. Additionally, the logistics sector is a known target for cybercriminals and state-sponsored actors due to its strategic importance, making European logistics firms particularly vulnerable to exploitation attempts leveraging this flaw.

Organizations should immediately verify if they are running affected versions of Dongsheng Logistics Software and prioritize upgrading to the latest patched versions once available. In the absence of an official patch, temporary mitigations include restricting access to the vulnerable endpoint via network-level controls such as firewalls or web application firewalls (WAFs) to allow only trusted IP addresses. Implement strict monitoring and alerting on the /CommMng/Print/UploadMailFile endpoint for unusual POST requests or file upload activities. Employ application-layer filtering to block uploads of executable or script files, particularly .ashx and other potentially dangerous extensions. Conduct thorough audits of server logs to detect any signs of exploitation attempts. Segmentation of the network to isolate the logistics software servers from critical infrastructure can limit lateral movement in case of compromise. Additionally, organizations should enforce strong endpoint protection and incident response readiness to quickly detect and respond to any exploitation. Finally, coordinate with the vendor for timely updates and guidance.