CVE-2026-1061 is a vulnerability identified in the xiweicheng TMS product, affecting all versions up to 2.28.0. The flaw resides in the Upload function within the FileController.java source file, where the filename argument is insufficiently validated, allowing an attacker to perform unrestricted file uploads remotely. This lack of validation means an attacker can upload arbitrary files, potentially including malicious scripts or executables, which could be used to execute code, escalate privileges, or disrupt service. The vulnerability does not require authentication or user interaction, making it easier to exploit remotely over the network. The CVSS 4.0 score of 5.3 reflects a medium severity, indicating moderate impact on confidentiality, integrity, and availability with low attack complexity. The exploit is publicly available, increasing the likelihood of exploitation attempts. No known exploits in the wild have been reported yet. The vulnerability affects a wide range of versions from 2.0 through 2.28.0, indicating a long-standing issue in the product. The absence of official patches or mitigation links suggests that users must implement their own controls or await vendor updates. This vulnerability could be leveraged to upload web shells or malware, leading to further compromise of affected systems.

For European organizations, the unrestricted upload vulnerability poses significant risks, especially for those relying on xiweicheng TMS for critical business or operational functions. Successful exploitation could lead to unauthorized code execution, data breaches, or service disruptions. Confidentiality may be compromised if sensitive files are accessed or exfiltrated through uploaded malicious payloads. Integrity is at risk if attackers modify or replace legitimate files, potentially undermining trust in the system. Availability could be affected if attackers deploy ransomware or cause system crashes via malicious uploads. The fact that no authentication is required lowers the barrier for attackers, increasing exposure. Organizations in sectors such as manufacturing, logistics, or supply chain management using xiweicheng TMS could face operational downtime or regulatory repercussions under GDPR if personal data is compromised. The public availability of exploit code further elevates the threat level, making timely mitigation critical to avoid targeted attacks.

European organizations should immediately assess their use of xiweicheng TMS and identify affected versions. In the absence of official patches, implement strict input validation on the filename parameter to block dangerous characters and file types. Restrict upload directories to non-executable paths and enforce file type whitelisting to prevent uploading of scripts or executables. Employ web application firewalls (WAFs) with rules to detect and block suspicious upload attempts. Monitor logs for unusual upload activity and conduct regular audits of uploaded files. Isolate the TMS system within segmented network zones to limit lateral movement in case of compromise. Consider deploying endpoint detection and response (EDR) solutions to detect post-exploitation behaviors. Engage with the vendor for official patches or updates and apply them promptly once available. Train staff on recognizing signs of compromise related to file upload abuse. Finally, maintain regular backups of critical data to enable recovery if an attack occurs.