Other nomination

Text/Plain Considered Harmful

Internet Explorer MIME-sniffs the contents of a message/rfc822 .eml file, so an attacker-hosted .eml can frame a page served as text/plain and have its injected HTML and script rendered anyway. This turns otherwise inert reflected input in text/plain responses into working cross-site scripting, and X-Content-Type-Options nosniff does not stop it.

Record

Published by

jankopecky.net

In the archive

• Nominated for the 2016–17 Top 10 Web Hacking Techniques

Tags

• mime
• xss
• content-type
• iframe
• filter-bypass
• owasp-a03-2021
• owasp-a05-2021

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