Hackers exploited a critical zero-day vulnerability in a server running the KnowledgeDeliver learning management system (LMS) to deploy the Godzilla web shell.
An antenna and an electromagnetic receiver were the only equipment needed, both small enough to fit inside a backpack.
CVE-2026-5426, a hardcoded ASP.NET machineKey in KnowledgeDeliver, was exploited as a zero-day in ViewState deserialization ...
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