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Scan rule · RSC-SEC-004

MIME sniffing not disabled

SecuritySeverity: LowCWE-430

Checks whether `X-Content-Type-Options: nosniff` stops content-type guessing.

Scan tier

External scan (anonymous)

How to fix it

Set `X-Content-Type-Options: nosniff` globally.

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More rules in this dimension

RSC-SEC-001

No end-to-end HTTPS

RSC-SEC-002

HSTS header missing

RSC-SEC-003

No Content-Security-Policy

RSC-SEC-005

No clickjacking protection

RSC-SEC-006

CORS wildcard on the public document

RSC-SEC-007

Server technology disclosed