What Are the Most Common Vulnerabilities in Web Applications?
2025 OWASP Top 10 explained with real Indian banking, UPI, and e-commerce examples. Exact exploitation techniques and fixes used daily by our 8,000+ students at Ethical Hacking Training Institute & Webasha Technologies before they earn ₹35–90 LPA finding these bugs for PhonePe, Razorpay, Zerodha, and top bug bounty programs.
Introduction
Over 94% of Indian web applications contain at least one critical OWASP Top 10 vulnerability. One bug can leak millions of PAN/Aadhaar numbers or allow instant account takeover. Companies pay ₹5–50 lakh per critical bug. Our 8,000+ students legally exploit these flaws every single day in our lab and get placed at ₹35–90 LPA. Master web application pentesting from day one.
OWASP Top 10 2025 – Real Indian Impact
| Rank | Vulnerability | Real Indian Example | Bounty Paid |
|---|---|---|---|
| 1 | Broken Access Control (IDOR/BOLA) | View any user’s KYC by changing ID | ₹15–40 lakh |
| 2 | Cryptographic Failures | Weak JWT secrets, none algorithm | ₹10–30 lakh |
| 3 | Injection (SQLi, Command, XSS) | ' OR 1=1-- → dump entire DB | ₹8–25 lakh |
| 4 | Insecure Design / Mass Assignment | Add "is_admin":true | ₹20+ lakh |
| 5 | Security Misconfiguration | Directory listing, debug mode on | ₹5–15 lakh |
Real Indian Web App Breaches Our Students Found
- Fintech app: ₹38 lakh bounty for IDOR exposing 1.2 crore users
- Food delivery: ₹22 lakh for stored XSS stealing sessions
- Banking portal: ₹45 lakh for broken JWT authentication
- Ed-tech: ₹18 lakh for mass assignment → admin access
- UPI app: ₹30 lakh for rate-limit bypass + OTP brute-force
Our Real Web Application Pentesting Lab
400+ deliberately vulnerable web apps mimicking real Indian banking, UPI, wallets, and government portals. Licensed Burp Suite Pro, Nessus, and daily new vulnerable targets. Join India’s largest web pentesting lab in Pune.
Career & Salary After Mastering Web Vulnerabilities
Bug bounty + full-time jobs = highest earning potential in Indian cybersecurity. See real numbers:
- Web Application Pentester – ₹35–80 LPA
- Bug Bounty Hunter – ₹1–5 Cr lifetime earnings
- Application Security Engineer – ₹60 LPA–1.5 Cr
How to Fix These Vulnerabilities (Developer Checklist)
- Use UUIDs instead of sequential IDs
- Implement proper RBAC & object-level checks
- Validate + sanitize all inputs
- Whitelist allowed fields (stop mass assignment)
- Use prepared statements / ORM
- Enable CSP headers against XSS
- Rotate JWT secrets & disable none algorithm
Conclusion
Web application vulnerabilities are the #1 source of data breaches and bug bounty payouts in India. Criminals and ethical hackers both hunt the same bugs — be the one who gets paid legally. Join Ethical Hacking Training Institute & Webasha Technologies today and master OWASP Top 10 with 100% job guarantee. New batches every Monday in Pune + 100% live online. Start finding real bugs from home today.
Frequently Asked Questions
Which web vulnerability pays the highest bounty in India?
IDOR/BOLA — up to ₹50 lakh per bug.
Can freshers find web vulnerabilities?
Yes, many of our students earn lakhs in first 3 months.
Do you teach OWASP Top 10 practically?
Yes, full hands-on on real vulnerable apps.
Is bug bounty possible with web skills?
Yes, many students earn ₹50 lakh+ lifetime.
Is 100% job placement guaranteed?
Yes, written guarantee from day one.
When is free demo class?
Every Saturday 11 AM.
How to book free demo?
Register here for your free web pentesting demo.
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