onwebkitplaybacktargetavailabilitychanged?! New exotic events in the XSS cheat sheet
The power of our XSS cheat sheet is we get fantastic contributions from the web security community and this update is no exception. We had…
Category: PortSwigger
A hacking hat-trick: previewing three PortSwigger Research publications coming to DEF CON & Black Hat USA
We’re delighted to announce three major research releases from PortSwigger Research will be published at both Black Hat USA and DEF CON 32. In this…
Fickle PDFs: exploiting browser rendering discrepancies
Imagine the CEO of a random company receives an email containing a PDF invoice file. In Safari and MacOS Preview, the total price displayed is…
Introducing the URL validation bypass cheat sheet
URL validation bypasses are the root cause of numerous vulnerabilities including many instances of SSRF, CORS misconfiguration, and open redirection. These work by using ambiguous…
Concealing payloads in URL credentials
Last year Johan Carlsson discovered you could conceal payloads inside the credentials part of the URL . This was fascinating to me especially because the…
New crazy payloads in the URL Validation Bypass Cheat Sheet
The strength of our URL Validation Bypass Cheat Sheet lies in the contributions from the web security community, and today’s update is no exception. We…
Bypassing WAFs with the phantom $Version cookie
HTTP cookies often control critical website features, but their long and convoluted history exposes them to parser discrepancy vulnerabilities. In this post, I’ll explore some…
Stealing HttpOnly cookies with the cookie sandwich technique
In this post, I will introduce the “cookie sandwich” technique which lets you bypass the HttpOnly flag on certain servers. This research follows on from…
Bypassing character blocklists with unicode overflows
Unicode codepoint truncation – also called a Unicode overflow attack – happens when a server tries to store a Unicode character in a single byte.…
Top 10 web hacking techniques of 2024
Welcome to the Top 10 Web Hacking Techniques of 2024, the 18th edition of our annual community-powered effort to identify the most innovative must-read web…
Shadow Repeater:AI-enhanced manual testing | PortSwigger Research
Have you ever wondered how many vulnerabilities you’ve missed by a hair’s breadth, due to a single flawed choice? We’ve just released Shadow Repeater, which…
SAML roulette: the hacker always wins
Introduction In this post, we’ll show precisely how to chain round-trip attacks and namespace confusion to achieve unauthenticated admin access on GitLab Enterprise by exploiting…