100 Web Vulnerabilities you should know as a Web application Penetration Tester
If you are working as web application penetration testing engineer you must know all the below listed vulnerablities.
100 Web Vulnerabilities, categorized into various types : 
SO lets Try to understand all these one by one:
TYPES OF Injection Vulnerabilities:
1. SQL Injection (SQLi)
This is Relates to SQL language or you can say about database query language.
2. Cross-Site Scripting (XSS)
Mostly found in web sites or web application. using this trick cyber expers all over the world find vulnerablities in web sites or web applications.
3. Cross-Site Request Forgery (CSRF)
It is also related to website.
4. Remote Code Execution (RCE)
This trick is used to execute code remotely.
5. Command Injection
Injecting any command either on a website web appl or os.
6. XML Injection
7. LDAP Injection
8. XPath Injection
9. HTML Injection
10. Server-Side Includes (SSI) Injection
11. OS Command Injection
12. Blind SQL Injection
13. Server-Side Template Injection (SSTI)
Broken Authentication and Session Management:
14. Session Fixation
15. Brute Force Attack
16. Session Hijacking
17. Password Cracking
18. Weak Password Storage
19. Insecure Authentication
20. Cookie Theft
21. Credential Reuse
Sensitive Data Exposure:
22. Inadequate Encryption
23. Insecure Direct Object References (IDOR)
24. Data Leakage
25. Unencrypted Data Storage
26. Missing Security Headers
27. Insecure File Handling
Security Misconfiguration:
28. Default Passwords
29. Directory Listing
30. Unprotected API Endpoints
31. Open Ports and Services
32. Improper Access Controls
33. Information Disclosure
34. Unpatched Software
35. Misconfigured CORS
36. HTTP Security Headers Misconfiguration
XML-Related Vulnerabilities:
37. XML External Entity (XXE) Injection
38. XML Entity Expansion (XEE)
39. XML Bomb
Broken Access Control:
40. Inadequate Authorization
41. Privilege Escalation
42. Insecure Direct Object References
43. Forceful Browsing
44. Missing Function-Level Access Control
Insecure Deserialization:
45. Remote Code Execution via Deserialization
46. Data Tampering
47. Object Injection
API Security Issues:
48. Insecure API Endpoints
49. API Key Exposure
50. Lack of Rate Limiting
51. Inadequate Input Validation
Insecure Communication:
52. Man-in-the-Middle (MITM) Attack
53. Insufficient Transport Layer Security
54. Insecure SSL/TLS Configuration
55. Insecure Communication Protocols
Client-Side Vulnerabilities:
56. DOM-based XSS
57. Insecure Cross-Origin Communication
58. Browser Cache Poisoning
59. Clickjacking
60. HTML5 Security Issues
Denial of Service (DoS):
61. Distributed Denial of Service (DDoS)
62. Application Layer DoS
63. Resource Exhaustion
64. Slowloris Attack
65. XML Denial of Service
Other Web Vulnerabilities:
66. Server-Side Request Forgery (SSRF)
67. HTTP Parameter Pollution (HPP)
68. Insecure Redirects and Forwards
69. File Inclusion Vulnerabilities
70. Security Header Bypass
71. Clickjacking
72. Inadequate Session Timeout
73. Insufficient Logging and Monitoring
74. Business Logic Vulnerabilities
75. API Abuse
Mobile Web Vulnerabilities:
76. Insecure Data Storage on Mobile Devices
77. Insecure Data Transmission on Mobile Devices
78. Insecure Mobile API Endpoints
79. Mobile App Reverse Engineering
IoT Web Vulnerabilities:
This is used in Internet of Things related Vulnerablities.
80. Insecure IoT Device Management 81. Weak Authentication on IoT Devices 82. IoT Device Vulnerabilities
Web of Things (WoT) Vulnerabilities:
This is also part of IOT but only on web Part.
83. Unauthorized Access to Smart Homes 84. IoT Data Privacy Issues
Authentication Bypass:
This trick used to bupass authentication system on web or remote login program.
85. Insecure "Remember Me" Functionality 86. CAPTCHA Bypass
Server-Side Request Forgery (SSRF):
Server side script.
87. Blind SSR
88. Time-Based Blind SSRF
Content Spoofing:
89. MIME Sniffing
90. X-Content-Type-Options Bypass
91. Content Security Policy (CSP) Bypass
Business Logic Flaws:
92. Inconsistent Validation
93. Race Conditions
94. Order Processing Vulnerabilities
95. Price Manipulation
96. Account Enumeration
97. User-Based Flaws
Zero-Day Vulnerabilities:
98. Unknown Vulnerabilities
99. Unpatched Vulnerabilities
100. Day-Zero Exploits
Injection Vulnerabilities:
1. SQL Injection (SQLi)
2. Cross-Site Scripting (XSS)
3. Cross-Site Request Forgery (CSRF)
4. Remote Code Execution (RCE)
5. Command Injection
6. XML Injection
7. LDAP Injection
8. XPath Injection
9. HTML Injection
10. Server-Side Includes (SSI) Injection
11. OS Command Injection
12. Blind SQL Injection
13. Server-Side Template Injection (SSTI)
Broken Authentication and Session Management:
14. Session Fixation
15. Brute Force Attack
16. Session Hijacking
17. Password Cracking
18. Weak Password Storage
19. Insecure Authentication
20. Cookie Theft
21. Credential Reuse
Sensitive Data Exposure:
22. Inadequate Encryption
23. Insecure Direct Object References (IDOR)
24. Data Leakage
25. Unencrypted Data Storage
26. Missing Security Headers
27. Insecure File Handling
Security Misconfiguration:
28. Default Passwords
29. Directory Listing
30. Unprotected API Endpoints
31. Open Ports and Services
32. Improper Access Controls
33. Information Disclosure
34. Unpatched Software
35. Misconfigured CORS
36. HTTP Security Headers Misconfiguration
XML-Related Vulnerabilities:
37. XML External Entity (XXE) Injection
38. XML Entity Expansion (XEE)
39. XML Bomb
Broken Access Control:
40. Inadequate Authorization
41. Privilege Escalation
42. Insecure Direct Object References
43. Forceful Browsing
44. Missing Function-Level Access Control
Insecure Deserialization:
45. Remote Code Execution via Deserialization
46. Data Tampering
47. Object Injection
API Security Issues:
48. Insecure API Endpoints
49. API Key Exposure
50. Lack of Rate Limiting
51. Inadequate Input Validation
Insecure Communication:
52. Man-in-the-Middle (MITM) Attack
53. Insufficient Transport Layer Security
54. Insecure SSL/TLS Configuration
55. Insecure Communication Protocols
Client-Side Vulnerabilities:
56. DOM-based XSS
57. Insecure Cross-Origin Communication
58. Browser Cache Poisoning
59. Clickjacking
60. HTML5 Security Issues
Denial of Service (DoS):
61. Distributed Denial of Service (DDoS)
62. Application Layer DoS
63. Resource Exhaustion
64. Slowloris Attack
65. XML Denial of Service
Other Web Vulnerabilities:
66. Server-Side Request Forgery (SSRF)
67. HTTP Parameter Pollution (HPP)
68. Insecure Redirects and Forwards
69. File Inclusion Vulnerabilities
70. Security Header Bypass
71. Clickjacking
72. Inadequate Session Timeout
73. Insufficient Logging and Monitoring
74. Business Logic Vulnerabilities
75. API Abuse
Mobile Web Vulnerabilities:
76. Insecure Data Storage on Mobile Devices
77. Insecure Data Transmission on Mobile Devices
78. Insecure Mobile API Endpoints
79. Mobile App Reverse Engineering
IoT Web Vulnerabilities:
80. Insecure IoT Device Management
81. Weak Authentication on IoT Devices
82. IoT Device Vulnerabilities
Web of Things (WoT) Vulnerabilities:
83. Unauthorized Access to Smart Homes
84. IoT Data Privacy Issues
Authentication Bypass:
85. Insecure "Remember Me" Functionality
86. CAPTCHA Bypass
Server-Side Request Forgery (SSRF):
87. Blind SSR
88. Time-Based Blind SSRF
Content Spoofing:
89. MIME Sniffing
90. X-Content-Type-Options Bypass
91. Content Security Policy (CSP) Bypass
Business Logic Flaws:
92. Inconsistent Validation
93. Race Conditions
94. Order Processing Vulnerabilities
95. Price Manipulation
96. Account Enumeration
97. User-Based Flaws
Zero-Day Vulnerabilities:
98. Unknown Vulnerabilities
99. Unpatched Vulnerabilities
100. Day-Zero Exploits
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