Jingmen Zeyou Large File Upload Control CVE-2025-8203

No vendor-released patch has been made available at time of analysis, as the vendor declined to respond to early disclosure notifications. Organizations should immediately inventory systems using Jingmen Zeyou Large File Upload Control and assess whether this component remains in active use. Primary mitigation options include: (1) Upgrade to a maintained alternative file upload solution with active security support, (2) Disable the /index.jsp endpoint or restrict network access to it via Web Application Firewall (WAF) rules or network segmentation if the component is still required, or (3) Implement database-level SQL injection protections such as input validation rules, stored procedure whitelisting, or parameterized query enforcement at the database tier (noting this adds latency but prevents direct SQL injection). If the component cannot be retired immediately, apply principle of least privilege by restricting user accounts that can access the file upload functionality. Given the vendor non-responsiveness and EPSS data indicating limited real-world exploitation, this remediation may be deferred in favor of higher-priority vulnerabilities unless inventory assessment confirms active use in critical systems.