CVE-2026-129262 in Wubang Five-in-One Safety Production Management Information System
Summary
by MITRE • 11/14/2026
A weakness has been identified in Wuxi Wubang Security Software Wubang Five-in-One Safety Production Management Information System up to 3.5. Affected by this vulnerability is the function DiyFileUpload of the file /ws.asmx. This manipulation causes unrestricted upload. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 11/14/2026
The Wuxi Wubang Security Software Five-in-One Safety Production Management Information System, specifically versions up to 3.5, contains a critical security flaw within its web service interface that allows for unrestricted file uploads. This vulnerability resides in the DiyFileUpload function exposed through the /ws.asmx endpoint. The core technical issue is a failure in input validation and access control mechanisms, which permits an attacker to bypass intended restrictions on file types and locations. By manipulating the parameters sent to this specific web service method, a remote actor can upload arbitrary files directly onto the underlying server infrastructure without requiring authentication or sufficient privilege levels. This lack of proper sanitization means that malicious payloads, such as shell scripts or executable binaries disguised with benign extensions, can be successfully deposited into directories where they may be executed by the application server.
From an operational perspective, this unrestricted file upload vulnerability poses a severe risk to system integrity and availability. Once a malicious file is uploaded, it often serves as a foothold for further exploitation. Attackers typically leverage such uploads to deploy web shells or remote access trojans, which provide persistent backdoor access to the compromised environment. This initial compromise can lead to full system takeover, allowing adversaries to exfiltrate sensitive data related to safety production management, modify critical configurations, or use the infected server as a pivot point for lateral movement within the internal network. The fact that public exploits are already available significantly lowers the barrier to entry for threat actors, increasing the likelihood of automated attacks and widespread compromise across unpatched installations.
The vendor's lack of response to early disclosure attempts exacerbates the risk profile associated with this vulnerability. Without an official patch or mitigation guidance from Wuxi Security Software, organizations relying on this system must implement compensating controls to protect their assets. Industry standards such as CWE-434, which classifies unrestricted upload of files with dangerous content, highlight the severity of this flaw. Furthermore, in the context of the MITRE ATT&CK framework, this vulnerability facilitates techniques related to Initial Access via Web Applications and Execution through Command and Scripting Interpreters if a web shell is deployed.
To mitigate these risks, administrators should immediately restrict network access to the /ws.asmx endpoint using firewall rules or reverse proxy configurations that limit connectivity to trusted IP addresses only. If possible, disabling the DiyFileUpload function entirely in the system configuration is recommended until an official patch is released. Additionally, implementing strict file type validation and extension whitelisting at the application layer can help prevent malicious uploads even if other controls fail. Regular monitoring of web server logs for unusual upload activities or requests to suspicious endpoints should also be established to detect potential exploitation attempts early. Given the public availability of exploits, proactive defense-in-depth measures are essential to maintain the security posture of affected systems.