Web Application Security Testing: A Guide


If you are in web development, web design, or web programming work and want to know the best practices for web application security testing, then this is the post for you. Web developers are responsible for implementing security measures into web applications to protect against malicious attacks. This article will provide a comprehensive guide on how to effectively test web application security.

What is web application security testing?

Web Application Security Testing is the practice of scanning, finding, and exploiting web applications in order to check their vulnerability status. The goal here is to find out the possible entry points for an attacker if they were looking into breaking into your web server or web app. Since it’s impossible to cover 100% of an application with web application security testing, web developers must make sure to implement proper web application security measures.

Why should I care about Web Application Security Testing?

It’s important to understand web application security testing because web applications are often the target for hackers and cyber criminals. If your web app is not properly secure, then it will be subjected to malicious attacks that can lead to data theft or compromised information. This could ultimately put you at risk of losing money, time and also damage your reputation as a web developer. Put simply: if your web application isn’t protected from outside threats; you’ll likely face some serious problems in the future.

How do I test for vulnerabilities in my web app?

There are several web application security testing techniques that web developers can use. The following are some of the most common ones:

  1. Fuzzing
  2. Static Code Analysis
  3. Web Application Penetration Testing
  4. Vulnerability Scanning/Web Application Scanners

As a whole, web application security is about being proactive and knowing what to look for when it comes to vulnerabilities in your web app. This begins with a thorough knowledge of how hackers breach web applications (attack vectors). From there, you’ll be able to identify risk factors by using penetration tests or vulnerability scanning tools like Netsparker Community Edition which is free for non commercial use! Be sure not to ignore any signs of trouble because if you do; then you could be leaving your web app open to a potential cyber attack.

How do I fix web application security vulnerabilities?

Following the web application security testing and fixing any issues that were discovered; web developers must make sure they implement proper web security measures in order to keep their web apps protected from outside threats, including:

  1. Proper Error Handling
  2. Cross Site Scripting (XSS) Prevention
  3. SQL Injection Prevention
  4. Session Management/Cookies Security
  5. Password Encryption
  6. Access Control Lists (ACLs) or Authentication & Authorization Controls

These are only some of the many ways to protect against malicious attacks when it comes to web applications. It’s recommended for web developers who want detailed information on how to avoid common web application security issues and measure web app risk; to read the OWASP (Open Web Application Security Project) web page on web application security commonly known as OWASP penetration testing.

The importance of measuring the impact of your findings on the organization’s goals and objectives:

By web developers understanding web application security testing, they can ensure their web apps are protected from outside threats. This will ultimately reduce the risk of being hacked and put you at less risk to lose money or time! Not only that; but if web applications are properly secured it’ll help build trust with your users so they feel safe when using your web app. Put simply: every business wants to keep its information secure in order to prevent data theft—and by following these steps on how to test for vulnerabilities in web apps; then chances are high that you’re going to protect them against any malicious attacks.


Web application security testing is important for web developers and everyone who uses web apps. The web application security testing is not one size fits all. It is determined by the website’s complexity, its purpose, and what you are attempting to safeguard. If your company’s mission includes securing sensitive data or intellectual property, then it may be worth investing in more extensive tests than if your goal is just to prevent fraud with credit cards for example. Web application security testing can help mitigate risks that could lead to costly breaches through penetration attempts by malicious actors.


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