Webmin

Webmin is a narrowly focused web-based system administration platform with a small product portfolio—chiefly Webmin, Usermin, and Userwin—that despite modest scope achieves significant deployment density across Unix and Linux server infrastructure, particularly in smaller hosting environments and self-managed deployments. Vulnerabilities affecting this vendor skew toward serious outcomes, with a meaningful share reaching critical severity, and frequently acquire public exploit code; the vendor's disclosures have recurred in lists of widely exploited flaws across the infrastructure sector. The exposure concentrates consistently around web-tier input handling and access control, expressed through weakness classes including cross-site scripting, OS command injection, cross-site request forgery, and improper access control—characteristic of a remotely accessible administration interface with a large native-code footprint. The combination of internet-facing deployment, command-execution capability, and exploit availability makes this vendor a persistent target for both opportunistic scanning and targeted compromise. Current exploitation activity, severity distribution, and exposure counts are shown alongside this summary.