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R043. Define explicit content type

This document contains the details of the security requirements related to the definition and management of files in the organization. This requirement establishes the importance of defining explicit content type and codification for all system files dynamically generated.


All system files generated dynamically must have a Content-Type explicitly defined.


  1. OWASP-ASVS v3.1-5.21 Verify that unstructured data is sanitized to enforce generic safety measures such as allowed characters and length, and characters potentially harmful in given context should be escaped (e.g. natural names with Unicode or apostrophes, such as ねこ or O’Hara).

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