Collected research

Expect Header Injection Via Flash

ha.ckers.org web application security lab - Archive » Expect Header Injection Via Flash

Follow-up on Amit Klein's Expect header injection via Flash, reporting that Secunia's test tool shows a large fraction of major sites affected. Any site echoing the Expect header lets an attacker-supplied movie run script in its origin, enabling cookie theft, page scraping and XSS proxying even where the site has no XSS of its own.

Record

Document

ha.ckers.org web application security lab - Archive » Expect Header Injection Via Flash

Published by

ha.ckers.org

Topic

HTTP

In the archive

• Collected in the 2006 research round

Tags

• flash
• header-injection
• xss
• http
• sop-bypass
• filter-bypass
• prior-art-extension
• owasp-a01-2021
• owasp-a03-2021
• owasp-a05-2021

This page is the archive's own catalogue record. The research is the work of ha.ckers.org, first published at the original source. Preserved copies are kept so the citation survives its host; this one was last captured on 9 August 2026.