June 24, 2025 - By Nico Waisman
The road to Top 1: How XBOW did it
For the first time in bug bounty history, an autonomous penetration tester has reached the top spot on the US leaderboard.
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Boosting offensive security with AI
XBOW autonomously finds and exploits vulnerabilities in 75% of web benchmarks
Blog
Updates and opinions from the team
June 24, 2025 - By Oege de Moor
Taking the Top Hacker in the US to New Heights: XBOW Raises $75M Series B
XBOW has reached a critical milestone: our AI now rivals and surpasses top-tier human hackers.
Read postJune 24, 2025 - By Alvaro Muñoz
Breaking the Shield: How XBOW Discovered Multiple XSS Vulnerabilities in Palo Alto’s GlobalProtect VPN
XBOW discovered multiple cross-site scripting (XSS) vulnerabilities in Palo Alto Networks’ GlobalProtect VPN web application
Read postDecember 20, 2024 - By Nico Waisman
The Nightmare Before Christmas: An arbitrary file download on Zoo-Project
XBOW discovered an arbitrary file download vulnerability on the WPS open source app Zoo-Project.
Read postDecember 13, 2024 - By Diego Jurado
Stored Cross-Site Scripting (XSS) in 2FAuth
XBOW discovered a Cross-Site Scripting (XSS) vulnerability in the open-source project, 2FAuth.
Read postDecember 2, 2024 - By Diego Jurado
LabsAI’s EDDI project path traversal
XBOW discovered a Path Traversal vulnerability in the open-source project, LabsAI’s EDDI.
Read postNovember 22, 2024 - By Nico Waisman
SSRF & URI validation bypass in 2FAuth
XBOW discovered a Server-Side Request Forgery (SSRF) vulnerability in the OTP preview feature of the open-source project, 2FAuth.
Read postNovember 13, 2024 - By Nico Waisman and Brendan Dolan-Gavitt
How XBOW found a Scoold authentication bypass
As we shift our focus from benchmarks to real world applications, we will be sharing some of the most interesting vulnerabilities XBOW has found in real-world, open-source targets. The first of these is an authentication bypass in Scoold, a popular open-source Q&A platform.
Read postSeptember 11, 2024 - By Nico Waisman
XBOW validation benchmarks: show me the numbers!
XBOW is currently making 104 benchmarks available to the public. This allows other security products, tools, and researchers to use and explore these benchmarks.
Read postAugust 5, 2024 - By Oege de Moor
XBOW now matches the capabilities of a top human pentester
Five professional pentesters were asked to find and exploit the vulnerabilities in 104 realistic web security benchmarks. The most senior of them, with over twenty years of experience, solved 85% during 40 hours, while others scored 59% or less. XBOW also scored 85%, doing so in 28 minutes. This illustrates how XBOW can boost offensive security teams, freeing them to focus on the most interesting and challenging parts of their job.
Read postJuly 30, 2024 - By Oege de Moor
Sequoia Capital leads $20M seed round in XBOW
XBOW scales offensive security through AI, boosting the work of pentesters, bug hunters and offensive security researchers. It autonomously solves 75% of web app security benchmarks. Sequoia Capital is leading a $20M seed round in XBOW.
Read postJuly 17, 2024 - By Brendan Dolan-Gavitt
Breaking Crypto with XBOW
When I taught Offensive Security at NYU, padding oracles were the hardest attack we covered in our two-week unit on breaking cryptography. So it shocked me when XBOW managed to successfully build an exploit for this vulnerability in one of our novel benchmarks “Bad Captcha”, using it to decrypt a cookie set by the server and bypass its authentication.
Read postJuly 15, 2024 - By Oege de Moor
Introducing XBOW
XBOW brings AI to offensive security. Today we’re announcing the results of testing XBOW on hundreds of web security benchmarks. Without any human intervention, XBOW correctly finds and exploits the vulnerabilities in most of them.
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