OWASP Top 10 Explained: Most Critical Web Security Risks

The OWASP Top 10 is a globally recognized list of the most critical security risks affecting web applications. Understanding these vulnerabilities helps developers and security professionals protect applications from cyber attacks.

By NextGen Securities • 15 min read

What is OWASP?

OWASP stands for the Open Web Application Security Project. It is a non-profit organization dedicated to improving software security. The OWASP Top 10 is a list of the most common and dangerous vulnerabilities found in modern web applications. Security professionals, developers, and ethical hackers use this list to identify and fix the most critical security risks.

OWASP Top 10 Vulnerabilities

Below are the ten most critical vulnerabilities identified by OWASP. Each vulnerability is clickable so you can explore detailed explanations.

A01: Broken Access Control

Occurs when users can access resources or perform actions they are not authorized to perform.

A02: Cryptographic Failures

Sensitive data is not properly encrypted or protected during storage or transmission.

A03: Injection

Occurs when untrusted input is executed as commands or database queries.

A04: Insecure Design

Security flaws caused by poor application design and lack of secure architecture.

A05: Security Misconfiguration

Incorrect server configurations expose systems to attackers.

A06: Vulnerable and Outdated Components

Using outdated libraries or frameworks that contain known vulnerabilities.

A07: Identification and Authentication Failures

Weak authentication systems allow attackers to compromise user accounts.

A08: Software and Data Integrity Failures

Untrusted software updates or insecure CI/CD pipelines may introduce malicious code.

A09: Security Logging and Monitoring Failures

Lack of monitoring prevents organizations from detecting attacks.

A10: Server-Side Request Forgery (SSRF)

Allows attackers to trick servers into making malicious requests.

Why the OWASP Top 10 Matters

The OWASP Top 10 provides a practical framework for understanding the most common web application security risks. By studying these vulnerabilities, developers and security engineers can build more secure applications.

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