CVE-2026-1061 is a security vulnerability identified in the xiweicheng TMS product, affecting all versions up to and including 2.28.0. The flaw exists in the Upload function located in the source file src/main/java/com/lhjz/portal/controller/FileController.java. The vulnerability is due to insufficient validation or sanitization of the 'filename' argument during file upload operations, which allows an attacker to upload arbitrary files to the server without restrictions. This unrestricted upload capability can be exploited remotely without requiring authentication or user interaction, making it relatively easy to exploit. The uploaded files could be malicious scripts or executables, potentially enabling attackers to execute arbitrary code, escalate privileges, or disrupt service availability. The vulnerability impacts confidentiality, integrity, and availability to a limited extent, as indicated by the CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L). The vulnerability has been publicly disclosed with exploit code available, although no active exploitation in the wild has been reported yet. The broad range of affected versions (2.0 through 2.28.0) indicates a long-standing issue in the product. No official patches or fixes are linked in the provided data, suggesting that users must apply manual mitigations or await vendor updates. Given the nature of the vulnerability, attackers could leverage it to compromise systems running xiweicheng TMS, especially in environments where file upload functionality is exposed to untrusted networks.

The unrestricted file upload vulnerability in xiweicheng TMS can lead to significant security risks for organizations worldwide. Successful exploitation could allow attackers to upload malicious files such as web shells, ransomware, or other malware, resulting in unauthorized code execution, data breaches, or system disruption. This can compromise the confidentiality of sensitive data, integrity of system files, and availability of services. Organizations relying on xiweicheng TMS for critical operations may face operational downtime, reputational damage, and potential regulatory penalties if exploited. The ease of remote exploitation without authentication increases the threat level, especially in environments with internet-facing TMS instances. Although no active exploitation is currently reported, the availability of public exploit code lowers the barrier for attackers, increasing the likelihood of future attacks. The vulnerability could also be chained with other exploits to achieve broader network compromise. Overall, the impact is medium but could escalate if combined with other vulnerabilities or misconfigurations.

To mitigate CVE-2026-1061, organizations should immediately review and restrict file upload functionality within xiweicheng TMS. Specific recommendations include: 1) Implement strict server-side validation and sanitization of all file upload parameters, especially the filename, to prevent arbitrary file writes. 2) Enforce file type restrictions and whitelist allowed file extensions to block executable or script files. 3) Deploy web application firewalls (WAFs) with rules to detect and block suspicious upload attempts targeting the vulnerable endpoint. 4) Isolate the upload directory with minimal permissions and disable execution privileges to limit impact if malicious files are uploaded. 5) Monitor logs and network traffic for unusual upload activity or access patterns. 6) Apply network segmentation to restrict access to the TMS upload interface from untrusted networks. 7) Engage with the vendor for official patches or updates and apply them promptly once available. 8) Conduct regular security assessments and penetration tests focusing on file upload mechanisms. 9) Educate administrators about this vulnerability and the importance of secure file handling. These measures, combined, will reduce the risk of exploitation until a vendor patch is released.