A Node.js Security Roadmap
summary
Vanilla Node.js server code demonstrates three distinct exploits in ~140 lines: shell injection via an uploaded filename (third‑party library bug despite 350,000 weekly downloads), a client XSS from arithmetic parsing, and a require/telemetry attack via the colors module. Proposed fixes use pug templates, CSP nonces, a trusted HTML type, SH template escaping, and module‑hashing to restrict runtime imports so only 58 of 114 files are required in production.
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