Web Application Analysisxssscannerfuzzercrawlerpayloadparser

XSStrike

XSStrike is a Cross Site Scripting detection suite equipped with four hand written parsers, an intelligent payload generator, a powerful fuzzing engine and an incredibly fast crawler.

Description

XSStrike is the most advanced XSS scanner available in Kali Linux. It provides comprehensive detection capabilities for Cross Site Scripting vulnerabilities through a suite of specialized components including parsers, payload generators, fuzzers, and crawlers.

Use cases include penetration testing web applications for XSS flaws, automated vulnerability scanning of URLs with GET or POST parameters, and fuzzing to discover injectable points. The tool supports encoding payloads, proxy usage, crawling, and customizable timeouts and threads for efficient scanning.

It requires Python3 dependencies like fuzzywuzzy, requests, and tld, making it lightweight at 179 KB installed size.

How It Works

XSStrike operates using four hand-written parsers to analyze responses, an intelligent payload generator to create context-aware XSS payloads, a powerful fuzzing engine to test parameters extensively, and a fast crawler to discover additional endpoints. It supports POST data analysis, payload encoding, proxy chaining, DOM skipping, and blind XSS detection with configurable thread counts, delays, and logging levels.

Installation

bash
sudo apt install xsstrike

Flags

-h, --helpshow this help message and exit
-u, --url TARGETurl
--data PARAMDATApost data
-e, --encode ENCODEencode payloads
--fuzzerfuzzer
--updateupdate
--timeout TIMEOUTtimeout
--proxyuse prox(y|ies)
--crawlcrawl
--jsonjson output
--pathpath scanning
--seeds ARGS_SEEDSseeds for crawling
-f ARGS_FILEfile input
-l LEVELscan level
--headers [ADD_HEADERS]add custom headers
-t THREADCOUNTthread count
-d DELAYdelay between requests
--skipskip certain checks
--skip-domskip DOM analysis
--blindblind XSS detection
--console-log-level {DEBUG,INFO,RUN,GOOD,WARNING,ERROR,CRITICAL,VULN}console log level
--file-log-level {DEBUG,INFO,RUN,GOOD,WARNING,ERROR,CRITICAL,VULN}file log level
--log-file LOG_FILElog file path

Examples

Show the help message and usage information for XSStrike
xsstrike -h
Scan a target URL for XSS vulnerabilities
xsstrike.py -u https://target.com
Scan with POST data parameters
xsstrike.py --data "param=value"
Scan URL with URL-encoded payloads
xsstrike.py -u https://target.com -e urlencode
Enable the fuzzing engine for advanced payload testing
xsstrike.py -u https://target.com --fuzzer
Crawl the target site and scan discovered pages
xsstrike.py -u https://target.com --crawl
Use proxies during the scan
xsstrike.py -u https://target.com --proxy
Scan with 10 threads for faster execution
xsstrike.py -u https://target.com -t 10
Updated 2026-04-16kali.org ↗