OWASP Top 10 Vulnerabilities

Vulnerability SQL Injection (SQLI)
Vulnerability Cross-Site Scripting (XSS)
Vulnerability XML External Entity Injection (XXE)
Vulnerability Local File Inclusion (LFI)
Vulnerability Local File Inclusion to Remote Code Execution (LFI to RCE)
Vulnerability Remote File Inclusion (RFI)
Vulnerability Cross-Site Request Forgery (CSRF)
Vulnerability Server-Side Request Forgery (SSRF)
Vulnerability Server-Side Template Injection (SSTI)
Vulnerability Client-Side Template Injection (CSTI)