Source: Dev.to
What Is a Bug Bounty?
Bug‑bounty programs reward security researchers for finding and responsibly reporting vulnerabilities in software, websites, and applications. Companies pay anywhere from $50 to $2 000 000+ depending on the severity of the bug.
Prerequisites
| ✅ | Requirement |
|---|
| 1 | Basic understanding of how the web works (HTTP, DNS, cookies, sessions) |
| 2 | HTML, CSS, JavaScript fundamentals |
| 3 | Basic programming (Python recommended) |
| 4 | Linux command‑line basics |
| 5 | Networking fundamentals (TCP/IP, ports, protocols) |
| 6 | Patience – most hunters quit in the first 6 months |
| 7 | Curiosity & persistence |
| 8 | Willingness to learn continuously |
| 9 | Ethical behaviour (never test without permission) |
Setting Up Your Environment
1. Choose a Linux‑based OS
- Recommended: Kali Linux, Parrot OS, or Ubuntu/Debian (with tools installed manually).
# Update system
sudo apt update && sudo apt upgrade -y
# Install basic tools
sudo apt install -y git curl wget python3 python3-pip nmap
# Install Go (needed for many tools)
wget https://go.dev/dl/go1.21.0.linux-amd64.tar.gz
sudo tar -C /usr/local -xzf go1.21.0.linux-amd64.tar.gz
echo 'export PATH=$PATH:/usr/local/go/bin:~/go/bin' >> ~/.bashrc
source ~/.bashrc
# Install subfinder (sub‑domain enumeration)
go install -v github.com/projectdiscovery/subfinder/v2/cmd/subfinder@latest
# Install httpx (HTTP probing)
go install -v github.com/projectdiscovery/httpx/cmd/httpx@latest
# Install nuclei (vulnerability scanner)
go install -v github.com/projectdiscovery/nuclei/v3/cmd/nuclei@latest
# Install ffuf (fuzzing)
go install github.com/ffuf/ffuf/v2@latest
3. Browser & Proxy
- Install Firefox or Chrome.
- Add extensions: FoxyProxy, Wappalyzer, Cookie Editor, HackBar.
- Download Burp Suite Community Edition.
- Set proxy listener to
127.0.0.1:8080 and configure the browser to use this proxy.
- Install Burp’s CA certificate in the browser.
Learning Path
| 📚 Course / Resource | Description |
|---|
| PortSwigger Web Security Academy | Free, essential for web‑app fundamentals. |
| TryHackMe – Bug Bounty Path | Hands‑on labs and rooms. |
| HackTheBox Academy | Structured learning tracks. |
| OWASP Top 10 | Core vulnerability categories (see below). |
| Legal Practice Targets | DVWA, bWAPP, OWASP WebGoat, HTB machines, TryHackMe rooms, PentesterLab. |
OWASP Top 10 (Must‑Know)
- Injection (SQL, Command, LDAP)
- Broken Authentication
- Sensitive Data Exposure
- XML External Entities (XXE)
- Broken Access Control
- Security Misconfiguration
- Cross‑Site Scripting (XSS)
- Insecure Deserialization
- Using Components with Known Vulnerabilities
- Insufficient Logging & Monitoring
| Platform | Best For |
|---|
| HackerOne | Largest program variety |
| Bugcrowd | Beginner‑friendly |
| Intigriti | European programs |
| YesWeHack | European programs |
| Immunefi | Crypto / Web3 (high payouts) |
| Synack | Invite‑only, higher pay |
Tips for picking a program
- Start with programs that have a broad scope.
- Look for good response times from the triage team.
- Avoid programs saturated with hunters (high competition).
- New programs often contain more low‑hanging fruit.
Finding Your First Bug
Recon Workflow (example)
# 1️⃣ Find subdomains
subfinder -d target.com -o subdomains.txt
# 2️⃣ Check which are alive
cat subdomains.txt | httpx -o alive.txt
# 3️⃣ Gather historic URLs
cat alive.txt | waybackurls > urls.txt
Manual Exploration
- Browse the application.
- Identify all features & functionality.
- Note authentication mechanisms.
- Find input fields (forms, parameters, headers).
- Check for APIs.
High‑Impact Bug Types to Target First
| Bug Type | Typical Vectors |
|---|
| Authentication Issues | Password‑reset flaws, account takeover |
| Access Control | IDOR, privilege escalation |
| Injection | XSS, SQLi, command injection |
| Business Logic | Price manipulation, race conditions, coupon reuse |
Writing a Good Report
Title: [Vulnerability Type] in [Feature/Endpoint] allows [Impact]
Summary:
- Brief description of the vulnerability and its impact.
Severity:
- Critical / High / Medium / Low
Steps to Reproduce:
1. Go to the vulnerable endpoint
2. Perform specific action
3. Observe the vulnerability
Proof of Concept:
- Screenshots, videos, code snippets
Impact:
- Explain what an attacker could do
Recommended Fix:
- Suggest how to fix the issue
Additional reporting tips
- Take screenshots, record HTTP requests/responses, and note reproduction steps before reporting.
- Include evidence (PCAPs, logs) when possible.
- Keep the language clear and concise.
Common Vulnerability Types (Quick Reference)
| Where to Look | Examples |
|---|
| Search boxes, comment fields, profile fields, URL parameters | XSS, reflected injection |
| Login forms, search features, filters, any DB query | SQLi, authentication bypass |
API endpoints (e.g., /api/user/123/profile) | IDOR – change IDs (123 → 124) |
| Password‑reset flows | Token leakage, no rate limiting |
| Session handling | Session not invalidated on logout |
| E‑commerce actions | Negative quantity, skip payment, coupon reuse, race conditions |
| Public files | /.git/config, /.env, /config.php.bak, /api/swagger.json |
| Tool | Purpose |
|---|
| Burp Suite | Web proxy & testing suite |
| Subfinder | Sub‑domain enumeration |
| Nuclei | Vulnerability scanning (templates) |
| ffuf | Fuzzing |
| httpx | HTTP probing |
| Nmap | Port scanning |
| SQLMap | Automated SQL injection |
| Amass | Advanced sub‑domain enumeration |
Tips for Success
- Read the program scope carefully – stay in‑scope.
- Start with less popular programs to reduce competition.
- Focus on one vulnerability type until you master it.
- Hunt consistently – 2–3 hours daily yields steady progress.
- Learn from duplicates – understand why a report was rejected.
- Network with other hunters (Discord, Reddit, Twitter).
- Document everything – notes, scripts, findings.
- Be patient – 95 % quit early; aim to be the 5 % who persist.
- Avoid blind automation – tailor payloads to the target.
- Never spam reports or test without permission.
- Never disclose publicly without explicit consent.
Resources
| Category | Resources |
|---|
| Learning | PortSwigger Web Security Academy, TryHackMe Bug Bounty Path, HackTheBox Academy |
| News & Trends | HackerOne Hacktivity, PentesterLand Newsletter |
| Community | STOK, NahamSec, InsiderPhD, LiveOverflow, John Hammond |
| Books | Web Application Hacker’s Handbook, Bug Bounty Bootcamp (Vickie Li), Real‑World Bug Hunting (Peter Yaworski) |
| Discord / Forums | HackerOne Discord, Bugcrowd Discord, NahamSec Discord, r/bugbounty (Reddit) |
Income Roadmap
| Level | Monthly Income | Time to Reach |
|---|
| Beginner | $0 – $500 | 0 – 12 months |
| Intermediate | $2 000 – 5 000 | 1 – 2 years |
| Advanced | $8 000 – 15 000 | 2 – 3 years |
| Elite | $20 000 + | 3 + years |
Typical Timeline
| Period | Milestone |
|---|
| Month 1‑3 | Learning & practicing – $0 earnings (normal) |
| Month 4‑6 | First valid reports – $0‑$500 |
| Month 7‑12 | Consistent findings – $500‑$2 000 / month |
| Year 2 | Intermediate level – $2 000‑$5 000 / month |
| Year 3+ | Advanced / Elite – $8 000+ / month |
Income Estimates
- Year 1–2: $2,000 – $5,000 per month
- Year 3+: Advanced hunter, $5,000 – $15,000+ per month
Remember: Bug bounty is a marathon, not a sprint. Stay consistent, keep learning, and the rewards will come.
Last updated: January 2026