Article: Understanding Common Web Application Vulnerabilities
This article provides an overview of frequently encountered vulnerabilities in web applications. It's designed for developers, security professionals, and anyone interested in building secure web applications.
Common Vulnerabilities Covered:
- SQL Injection
- Cross-Site Scripting (XSS)
- Cross-Site Request Forgery (CSRF)
- Authentication and Authorization Issues
- Insecure File Uploads
SQL Injection
SQL Injection occurs when an attacker can manipulate SQL queries, potentially gaining unauthorized access to your database. We'll discuss techniques for preventing this, including parameterized queries and input validation.
Cross-Site Scripting (XSS)
XSS vulnerabilities allow attackers to inject malicious scripts into websites viewed by other users. Learn how to sanitize user input and use appropriate output encoding to mitigate XSS risks.
Cross-Site Request Forgery (CSRF)
CSRF attacks trick users into performing actions they didn't intend to. We'll cover how to implement CSRF tokens to protect against these attacks.
Authentication and Authorization Issues
This section covers common problems with user authentication and authorization, such as weak passwords, insecure session management, and privilege escalation.
Insecure File Uploads
File upload vulnerabilities can allow attackers to upload malicious files to your server. Learn how to validate file types, restrict file sizes, and sanitize file names.
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