This list is for anyone wishing to learn about web application security but do not have a starting point.

You can help by sending Pull Requests to add more information.

If you're not inclined to make PRs you can tweet me at @infoslack

• Books
• Documentation
• Tools
• Cheat Sheets
• Docker
• Vulnerabilities
• Courses
• Online Hacking Demonstration Sites
• Labs
• SSL
• Security Ruby on Rails

• http://www.amazon.com/The-Web-Application-Hackers-Handbook/dp/8126533404/ The Web Application Hacker’s Handbook: Finding and Exploiting Security Flaws
• http://www.amazon.com/Hacking-Web-Apps-Preventing-Application/dp/159749951X/ Hacking Web Apps: Detecting and Preventing Web Application Security Problems
• http://www.amazon.com/Hacking-Exposed-Web-Applications-Third/dp/0071740643/ Hacking Exposed Web Applications
• http://www.amazon.com/SQL-Injection-Attacks-Defense-Second/dp/1597499633/ SQL Injection Attacks and Defense
• http://www.amazon.com/Tangled-Web-Securing-Modern-Applications/dp/1593273886/ The Tangled WEB: A Guide to Securing Modern Web Applications
• http://www.amazon.com/Web-Application-Obfuscation-Evasion-Filters/dp/1597496049/ Web Application Obfuscation: '-/WAFs..Evasion..Filters//alert(/Obfuscation/)-'
• http://www.amazon.com/XSS-Attacks-Scripting-Exploits-Defense/dp/1597491543/ XSS Attacks: Cross Site Scripting Exploits and Defense
• http://www.amazon.com/Browser-Hackers-Handbook-Wade-Alcorn/dp/1118662091/ The Browser Hacker’s Handbook
• http://www.amazon.com/Basics-Web-Hacking-Techniques-Attack/dp/0124166008/ The Basics of Web Hacking: Tools and Techniques to Attack the Web
• http://www.amazon.com/Web-Penetration-Testing-Kali-Linux/dp/1782163166/ Web Penetration Testing with Kali Linux
• http://www.amazon.com/Web-Application-Security-Beginners-Guide/dp/0071776168/ Web Application Security, A Beginner's Guide
• https://www.amazon.com/Hacking-Art-Exploitation-Jon-Erickson/dp/1593271441/ Hacking: The Art of Exploitation
• https://www.crypto101.io/ - Crypto 101 is an introductory course on cryptography
• http://www.offensive-security.com/metasploit-unleashed/ - Metasploit Unleashed
• http://www.cl.cam.ac.uk/~rja14/book.html - Security Engineering
• https://www.feistyduck.com/library/openssl-cookbook/ - OpenSSL Cookbook
• https://www.manning.com/books/real-world-cryptography - Learn and apply cryptographic techniques.
• https://www.manning.com/books/making-sense-of-cyber-security - A guide to the key concepts, terminology, and technologies of cybersecurity perfect for anyone planning or implementing a security strategy.
• https://www.manning.com/books/cyber-security-career-guide - Kickstart a career in cyber security by learning how to adapt your existing technical and non-technical skills.
• https://www.manning.com/books/secret-key-cryptography - A book about cryptographic techniques and Secret Key methods.
• https://www.manning.com/books/application-security-program-handbook - This practical book is a one-stop guide to implementing a robust application security program.
• https://www.manning.com/books/cyber-threat-hunting - Practical guide to cyber threat hunting.
• https://nostarch.com/bug-bounty-bootcamp - Bug Bounty Bootcamp
• https://nostarch.com/hacking-apis - Hacking APIs
• https://www.manning.com/books/grokking-web-application-security - A book about building web apps that are ready for and resilient to any attack.

• https://www.owasp.org/ - Open Web Application Security Project
• http://www.pentest-standard.org/ - Penetration Testing Execution Standard
• http://www.binary-auditing.com/ - Dr. Thorsten Schneider’s Binary Auditing
• https://appsecwiki.com/ - Application Security Wiki is an initiative to provide all Application security related resources to Security Researchers and developers at one place.

• https://www.deepinfo.com/ - Deepinfo Attack Surface Platform discovers all your digital assets, monitors them 24/7, detects any issues, and notifies you quickly so you can take immediate action.
• https://spyse.com/ - OSINT search engine that provides fresh data about the entire web, storing all data in its own DB, interconnect finding data and has some cool features.
• http://www.metasploit.com/ - World's most used penetration testing software
• https://findsubdomains.com - Online subdomains scanner service with lots of additional data. works using OSINT.
• https://github.com/bjeborn/basic-auth-pot HTTP Basic Authentication honeyPot.
• http://www.arachni-scanner.com/ - Web Application Security Scanner Framework
• https://github.com/sullo/nikto - Nikto web server scanner
• http://www.tenable.com/products/nessus-vulnerability-scanner - Nessus Vulnerability Scanner
• http://www.portswigger.net/burp/intruder.html - Burp Intruder is a tool for automating customized attacks against web apps.
• http://www.openvas.org/ - The world's most advanced Open Source vulnerability scanner and manager.
• https://github.com/iSECPartners/Scout2 - Security auditing tool for AWS environments
• https://www.owasp.org/index.php/Category:OWASP_DirBuster_Project - Is a multi threaded java application designed to brute force directories and files names on web/application servers.
• https://www.owasp.org/index.php/ZAP - The Zed Attack Proxy is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications.
• https://github.com/tecknicaltom/dsniff - dsniff is a collection of tools for network auditing and penetration testing.
• https://github.com/WangYihang/Webshell-Sniper - Manage your webshell via terminal.
• https://github.com/DanMcInerney/dnsspoof - DNS spoofer. Drops DNS responses from the router and replaces it with the spoofed DNS response
• https://github.com/trustedsec/social-engineer-toolkit - The Social-Engineer Toolkit (SET) repository from TrustedSec
• https://github.com/sqlmapproject/sqlmap - Automatic SQL injection and database takeover tool
• https://github.com/beefproject/beef - The Browser Exploitation Framework Project
• http://w3af.org/ - w3af is a Web Application Attack and Audit Framework
• https://github.com/espreto/wpsploit - WPSploit, Exploiting Wordpress With Metasploit
• https://github.com/WangYihang/Reverse-Shell-Manager - Reverse shell manager via terminal.
• https://github.com/RUB-NDS/WS-Attacker - WS-Attacker is a modular framework for web services penetration testing
• https://github.com/wpscanteam/wpscan - WPScan is a black box WordPress vulnerability scanner
• http://sourceforge.net/projects/paros/ Paros proxy
• https://www.owasp.org/index.php/Category:OWASP_WebScarab_Project Web Scarab proxy
• https://code.google.com/p/skipfish/ Skipfish, an active web application security reconnaissance tool
• http://www.acunetix.com/vulnerability-scanner/ Acunetix Web Vulnerability Scanner
• https://cystack.net/ CyStack Web Security Platform
• http://www-03.ibm.com/software/products/en/appscan IBM Security AppScan
• https://www.netsparker.com/web-vulnerability-scanner/ Netsparker web vulnerability scanner
• http://www8.hp.com/us/en/software-solutions/webinspect-dynamic-analysis-dast/index.html HP Web Inspect
• https://github.com/sensepost/wikto Wikto - Nikto for Windows with some extra features
• http://samurai.inguardians.com Samurai Web Testing Framework
• https://code.google.com/p/ratproxy/ Ratproxy
• http://www.websecurify.com Websecurify
• http://sourceforge.net/projects/grendel/ Grendel-scan
• https://tools.kali.org/web-applications/gobuster Directory/file and DNS busting tool written in Go
• http://www.edge-security.com/wfuzz.php Wfuzz
• http://wapiti.sourceforge.net wapiti
• https://github.com/neuroo/grabber Grabber
• https://subgraph.com/vega/ Vega
• http://websecuritytool.codeplex.com Watcher passive web scanner
• http://xss.codeplex.com x5s XSS and Unicode transformations security testing assistant
• http://www.beyondsecurity.com/avds AVDS Vulnerability Assessment and Management
• http://www.golismero.com Golismero
• http://www.ikare-monitoring.com IKare
• http://www.nstalker.com N-Stalker X
• https://www.rapid7.com/products/nexpose/index.jsp Nexpose
• http://www.rapid7.com/products/appspider/ App Spider
• http://www.milescan.com ParosPro
• https://www.qualys.com/enterprises/qualysguard/web-application-scanning/ Qualys Web Application Scanning
• http://www.beyondtrust.com/Products/RetinaNetworkSecurityScanner/ Retina
• https://www.owasp.org/index.php/OWASP_Xenotix_XSS_Exploit_Framework Xenotix XSS Exploit Framework
• https://github.com/future-architect/vuls Vulnerability scanner for Linux, agentless, written in golang.
• https://github.com/rastating/wordpress-exploit-framework A Ruby framework for developing and using modules which aid in the penetration testing of WordPress powered websites and systems.
• http://www.xss-payloads.com/ XSS Payloads to leverage XSS vulnerabilities, build custom payloads, practice penetration testing skills.
• https://github.com/joaomatosf/jexboss JBoss (and others Java Deserialization Vulnerabilities) verify and EXploitation Tool
• https://github.com/commixproject/commix Automated All-in-One OS command injection and exploitation tool
• https://github.com/pathetiq/BurpSmartBuster A Burp Suite content discovery plugin that add the smart into the Buster!
• https://github.com/GoSecure/csp-auditor Burp and ZAP plugin to analyze CSP headers
• https://github.com/ffleming/timing_attack Perform timing attacks against web applications
• https://github.com/lalithr95/fuzzapi Fuzzapi is a tool used for REST API pentesting
• https://github.com/owtf/owtf Offensive Web Testing Framework (OWTF)
• https://github.com/nccgroup/wssip Application for capturing, modifying and sending custom WebSocket data from client to server and vice versa.
• https://github.com/PalindromeLabs/STEWS Tool suite for WebSocket discovery, fingerprinting, and vulnerability detection
• https://github.com/tijme/angularjs-csti-scanner Automated client-side template injection (sandbox escape/bypass) detection for AngularJS (ACSTIS).
• https://reshift.softwaresecured.com A source code analysis tool for detecting and managing Java security vulnerabilities.
• https://encoding.tools Web app for transforming binary data and strings, including hashes and various encodings. GPLv3 offline version available.
• https://gchq.github.io/CyberChef/ A "Cyber Swiss Army Knife" for carrying out various encodings and transformations of binary data and strings.
• https://github.com/urbanadventurer/WhatWeb WhatWeb - Next generation web scanner
• https://www.shodan.io/ Shodan - The search engine for find vulnerable servers
• https://github.com/WangYihang/Webshell-Sniper A webshell manager via terminal
• https://github.com/nil0x42/phpsploit PhpSploit - Full-featured C2 framework which silently persists on webserver via evil PHP oneliner
• https://webhint.io/ - webhint - webhint is a customizable linting tool that helps you improve your site's accessibility, speed, cross-browser compatibility, and more by checking your code for best practices and common errors.
• https://gtfobins.github.io/ - gtfobins - GTFOBins is a curated list of Unix binaries that can be used to bypass local security restrictions in misconfigured systems.
• https://github.com/HightechSec/git-scanner git-scanner - A tool for bug hunting or pentesting for targeting websites that have open .git repositories available in public
• Web Application Exploitation @ Rawsec Inventory - Complete list of Web pentesting tools
• Cyclops is a novel browser that can detect vulnerability automatically - Cyclops is a web browser with XSS detection feature
• https://caido.io/ - Web proxy
• https://github.com/assetnote/kiterunner - API discovery
• https://github.com/owasp-amass/amass - domain recon
• https://columbus.elmasy.com/ - Columbus Project is an advanced subdomain discovery service with fast, powerful and easy to use API.

• http://n0p.net/penguicon/php_app_sec/mirror/xss.html - XSS cheatsheet
• https://highon.coffee/blog/lfi-cheat-sheet/ - LFI Cheat Sheet
• https://highon.coffee/blog/reverse-shell-cheat-sheet/ - Reverse Shell Cheat Sheet
• https://www.netsparker.com/blog/web-security/sql-injection-cheat-sheet/ - SQL Injection Cheat Sheet
• https://www.gracefulsecurity.com/path-traversal-cheat-sheet-windows/ - Path Traversal Cheat Sheet: Windows

• docker pull kalilinux/kali-linux-docker official Kali Linux
• docker pull blackarchlinux/blackarch official BlackArch Linux
• docker pull owasp/zap2docker-stable - official OWASP ZAP
• docker pull wpscanteam/wpscan - official WPScan
• docker pull metasploitframework/metasploit-framework - docker-metasploit
• docker pull citizenstig/dvwa - Damn Vulnerable Web Application (DVWA)
• docker pull bkimminich/juice-shop OWASP Juice Shop
• docker pull wpscanteam/vulnerablewordpress - Vulnerable WordPress Installation
• docker pull hmlio/vaas-cve-2014-6271 - Vulnerability as a service: Shellshock
• docker pull hmlio/vaas-cve-2014-0160 - Vulnerability as a service: Heartbleed
• docker pull opendns/security-ninjas - Security Ninjas
• docker pull noncetonic/archlinux-pentest-lxde:1.0 - Arch Linux Penetration Tester
• docker pull diogomonica/docker-bench-security - Docker Bench for Security
• docker pull ismisepaul/securityshepherd - OWASP Security Shepherd
• docker pull danmx/docker-owasp-webgoat - OWASP WebGoat Project docker image
• docker pull docker pull jeroenwillemsen/wrongsecrets - OWASP WrongSecrets Project docker image
• docker pull citizenstig/nowasp - OWASP Mutillidae II Web Pen-Test Practice Application
• docker pull aaaguirre/pentest - Docker for pentest
• docker pull rustscan/rustscan:2.0.0 - The Modern Port Scanner

• http://cve.mitre.org/ - Common Vulnerabilities and Exposures. The Standard for Information Security Vulnerability Names
• https://www.exploit-db.com/ - The Exploit Database – ultimate archive of Exploits, Shellcode, and Security Papers.
• http://0day.today/ - Inj3ct0r is the ultimate database of exploits and vulnerabilities and a great resource for vulnerability researchers and security professionals.
• http://osvdb.org/ - OSVDB's goal is to provide accurate, detailed, current, and unbiased technical security information.
• http://www.securityfocus.com/ - Since its inception in 1999, SecurityFocus has been a mainstay in the security community.
• http://packetstormsecurity.com/ - Global Security Resource
• https://wpvulndb.com/ - WPScan Vulnerability Database
• https://snyk.io/vuln/ - Vulnerability DB, Detailed information and remediation guidance for known vulnerabilities.

• https://www.offensive-security.com/information-security-training/advanced-web-attack-and-exploitation/ Offensive Security Advanced Web Attacks and Exploitation (live)
• https://www.sans.org/course/web-app-penetration-testing-ethical-hacking Sans SEC542: Web App Penetration Testing and Ethical Hacking
• https://www.sans.org/course/advanced-web-app-penetration-testing-ethical-hacking Sans SEC642: Advanced Web App Penetration Testing and Ethical Hacking
• http://opensecuritytraining.info/ - Open Security Training
• http://securitytrainings.net/security-trainings/ - Security Exploded Training
• http://www.securitytube.net/ - World’s largest Infosec and Hacking Portal.
• https://www.hacker101.com/ - Free class for web security by Hackerone
• https://www.darkrelay.com/courses/professional-penetration-tester - Zero-Hero style Pentesting course by DarkRelay Security Labs

• http://testasp.vulnweb.com/ - Acunetix ASP test and demonstration site
• http://testaspnet.vulnweb.com/ - Acunetix ASP.Net test and demonstration site
• http://testphp.vulnweb.com/ - Acunetix PHP test and demonstration site
• http://crackme.cenzic.com/kelev/view/home.php - Crack Me Bank
• http://zero.webappsecurity.com/ - Zero Bank
• http://demo.testfire.net/ - Altoro Mutual
• https://public-firing-range.appspot.com/ - Firing Range is a test bed for automated web application security scanners.
• https://xss-game.appspot.com/ - XSS challenge
• https://google-gruyere.appspot.com/ Google Gruyere, web application exploits and defenses
• https://ginandjuice.shop/catalog
• https://pentest-ground.com/ Pentest-Ground is a free playground with deliberately vulnerable web applications and network services.

• https://portswigger.net/web-security - Web Security Academy: Free Online Training from PortSwigger
• http://www.cis.syr.edu/~wedu/seed/all_labs.html - Developing Instructional Laboratories for Computer SEcurity EDucation
• https://www.vulnhub.com/ - Virtual Machines for Localhost Penetration Testing.
• https://pentesterlab.com/ - PentesterLab is an easy and great way to learn penetration testing.
• https://github.com/jerryhoff/WebGoat.NET - This web application is a learning platform about common web security flaws.
• http://www.dvwa.co.uk/ - Damn Vulnerable Web Application (DVWA)
• http://sourceforge.net/projects/lampsecurity/ - LAMPSecurity Training
• https://github.com/Audi-1/sqli-labs - SQLI labs to test error based, Blind boolean based, Time based.
• https://github.com/paralax/lfi-labs - small set of PHP scripts to practice exploiting LFI, RFI and CMD injection vulns
• https://hack.me/ - Build, host and share vulnerable web apps in a sandboxed environment for free
• http://azcwr.org/az-cyber-warfare-ranges - Free live fire Capture the Flag, blue team, red team Cyber Warfare Range for beginners through advanced users. Must use a cell phone to send a text message requesting access to the range.
• https://github.com/adamdoupe/WackoPicko - WackoPicko is a vulnerable web application used to test web application vulnerability scanners.
• https://github.com/rapid7/hackazon - Hackazon is a free, vulnerable test site that is an online storefront built with the same technologies used in today’s rich client and mobile applications.
• https://github.com/RhinoSecurityLabs/cloudgoat - Rhino Security Labs' "Vulnerable by Design" AWS infrastructure setup tool
• https://www.hackthebox.eu/ - Hack The Box is an online platform allowing you to test and advance your skills in cyber security.
• https://github.com/tegal1337/0l4bs - 0l4bs is a Cross-site scripting labs for web application security enthusiasts.
• https://github.com/oliverwiegers/pentest_lab - Local pentest lab leveraging docker compose.
• https://ginandjuice.shop/catalog
• https://github.com/dolevf/Damn-Vulnerable-GraphQL-Application

• https://www.ssllabs.com/ssltest/index.html - This service performs a deep analysis of the configuration of any SSL web server on the public Internet.
• http://certdb.com/ - SSL/TLS data provider service. Collect the data about digital certificates - issuers, organisation, whois, expiration dates, etc... Plus, has handy filters for convenience.
• https://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html - Strong SSL Security on nginx
• https://weakdh.org/ - Weak Diffie-Hellman and the Logjam Attack
• https://letsencrypt.org/ - Let’s Encrypt is a new Certificate Authority: It’s free, automated, and open.
• https://filippo.io/Heartbleed/ - A checker (site and tool) for CVE-2014-0160 (Heartbleed).
• https://testssl.sh/ - A command line tool which checks a website's TLS/SSL ciphers, protocols and cryptographic flaws.

• http://brakemanscanner.org/ - A static analysis security vulnerability scanner for Ruby on Rails applications.
• https://github.com/rubysec/ruby-advisory-db - A database of vulnerable Ruby Gems
• https://github.com/rubysec/bundler-audit - Patch-level verification for Bundler
• https://github.com/hakirisec/hakiri_toolbelt - Hakiri Toolbelt is a command line interface for the Hakiri platform.
• https://hakiri.io/facets - Scan Gemfile.lock for vulnerabilities.
• http://rails-sqli.org/ - This page lists many query methods and options in ActiveRecord which do not sanitize raw SQL arguments and are not intended to be called with unsafe user input.
• https://github.com/0xsauby/yasuo - A ruby script that scans for vulnerable & exploitable 3rd-party web applications on a network