Preliminary research

Burp Suite Professional: browser-powered crawl writes attacker-controlled files

Masahiro Kawada (kawakatz) · HackerOne

AI-collected research leads through 6 October 2026, including bounded month-by-month reviews of selected social and community sources from January through September. Unranked, incomplete, not community-vetted, and subject to change.

Traces attacker-controlled file-input metadata through a browser-powered crawler into local file creation. An unchecked extension/path allows a generated upload file to escape its temporary directory, with a Windows Startup example demonstrating delayed execution at a later login under the scanner user’s permissions.

Record

Researcher

Masahiro Kawada (kawakatz)

Published by

HackerOne

In the archive

• Collected in the 2026 preliminary research sweep

Related sources

• Vendor release

Tags

• path-traversal
• file-upload
• rce
• bug-bounty
• case-study
• owasp-a01-2021

This page is the archive's own catalogue record. The research is the work of Masahiro Kawada (kawakatz), first published at the original source. Preserved copies are kept so the citation survives its host.