Emerald Red Team

ERT-CONFIG-011

Server or framework version disclosed

LowA02:2025CWE-200

Why it matters

Version headers help attackers pick known exploits.

How to fix it

Remove X-Powered-By (Next.js: poweredByHeader: false) and generic Server headers.

How we test it

Passive — runs in the free check, looks only at what a browser can see.

Does your app have this problem?

The free Quick Check tests for it.

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