Preliminary research

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

Burp Suite Professional: browser-powered crawl can write attacker-controlled files through file input handling

Masahiro Kawada (kawakatz) · HackerOne

AI-collected research leads through 22 September 2026, including targeted additions between broader sweeps. 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

Document

Burp Suite Professional: browser-powered crawl can write attacker-controlled files through file input handling

Researcher

Masahiro Kawada (kawakatz)

Published by

HackerOne

Topic

Browser

In the archive

• Collected in the 2026 preliminary research sweep

Related sources

• Burp Suite Professional / Community 2026.4.3

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; this one was last captured on 13 September 2026.