OWASPASVS 5.0 requirement

ASVS-V4.1.1 Every http response with a message body contains a content-type header field that matches the actual content of the response, including the…

L1 Published 2025 Official page ↗
Standard
OWASP ASVS 5.0
Chapter
V4 API and Web Service
Section
V4.1 Generic Web Service Security
Level
L1 (requirement applies from this verification level up)

Requirement

Verify that every HTTP response with a message body contains a Content-Type header field that matches the actual content of the response, including the charset parameter to specify safe character encoding (e.g., UTF-8, ISO-8859-1) according to IANA Media Types, such as "text/", "/+xml" and "/xml".