Cyber Risks · PortSwigger Research

Using Burp to Manually Test for Stored XSS - Port Swigger

Summary: PortSwigger's tutorial walks through generating a proof-of-concept stored XSS exploit against a version of Mutillidae from OWASP's Broken Web Application Project, using Burp Proxy to capture a request, Repeater to inject a payload such as "><script>alert(document.domain)</script>, and a second request to simulate the victim. The page notes it has not been updated for a while and its information may no longer be accurate.

What's compelling: Stored XSS executes in the browser of any user who views the affected content, letting an attacker steal session tokens or login credentials, act as the victim, and log keystrokes - and the tutorial's own alert(document.domain) payload shows exactly which domain that arbitrary JavaScript runs on.

Read the original at PortSwigger Research ↗

Topics
Vulnerabilities & Patching
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