Web Security Testing

Web Security Testing Explained


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Going to the enormous amount of data stored in web applications and improving the number of transactions on the web, decent security testing of the web application is growing to become very important day by day. This article will learn in detail about the key terms used for website security testing and its testing approach.

What is Web Security Testing?

Web Security testing is the procedure that checks whether the confidential data is saying confidential or not, i.e., it is not exposed to people for which it is not meant for. The authorized users can perform the tasks. For example, a user shouldn’t be able to deny the website’s functionality to other users, or a user should not be able to modify the functionality of a web application in an unintended way.

Key Terms of Website Security Testing

It would be beneficial if your family rise yourself with a few terms that are frequently used in web application security testing:

What is Vulnerability?

It is a weakness in a web application. Such weakness could be due to high but in the application, an injection in the SQL script code or presence of viruses.

What is URL Manipulation?

Some applications communicate through additional information between the client and the server in the URL. Modifying some information in the URL could lead to an intended behaviour by the server and is termed URL manipulation.

What is SQL Injection?

The process of inserting SQL statements by a web application user interface inside some query executed by the server.

What is XSS(Cross-Site Scripting)?

When an HTML or client-side script is inserted by the user in the user interface of a web application, this edition will be visible to other users and is termed as XSS.

What is Spoofing?

The formation of a hoax look-alike website or emails is called spoofing.

Also read: Dynamic Application Security Testing

Some Recommended Website Security Testing Tools

Here are some website security testing tools:

1. Acunetix

Acunetix is an end-to-end web application security scanner, and it will provide a 360-degree view of your organization’s security. It can detect 6500 types of vulnerabilities like SQL injections, XSS, and weak passwords. It offers the use of advanced macro recording technology for scanning complex multilevel forms. The program is intuitive and easy to use. You can also schedule and prioritize full scans and incremental scans as a built-in vulnerability management functionality. By using CI tools like Jenkins, you can scan new builds automatically.

2. Netsparker

Netsparker is the platform for all requirements of web application security testing. It is a web vulnerability scanning solution with vulnerability scanning capabilities, vulnerability assessment, and vulnerability management. Netsparker is best for scanning precision and one-of-a-kind acid discovery technologies. It could be integrated with popular issue management and CI/CD applications. Netsparker offers proof of exploitation to identify vulnerability for confirming that it is not a false positive. It has an advanced scanning engine, advanced crawling authentication features, and WAF integration functionality.

3. Kiuwan

Kiuwan complies with the highest levels of safety, such as OWASP, CWE, SANS 25, HIPPA, etc. Integrate Kiuwan into your IDE during development for instant feedback. Kiuwan supports and integrates with leading DevOps tools in all major programming languages.

Also read: Application Security Testing Tools

Web Application Security Testing Approach

The security tester should have excellent knowledge of the HTTP protocol to perform a useful security test for the web application. The way the client (browser) and the server interact with HTTP is important to understand. Furthermore, the tester should know the fundamental principles of SQL injection and XSS at least. It is hoped that the number of web application security flaws won’t be high. However, it will help to describe all security flaws with all the details required accurately.

Methods for Web Application Security Testing

Below are the methods for web application security testing:

1. Password Cracking

“Password Cracking” will start the security tests on a web application. You can either imagine a username/password or use a password cracker tool for logging in to the application’s private areas. A list of common usernames and passwords and open-source password crackers are available. If there is no complicated password (for example, alphabets, numbers, and special characters, or at least the number of characters needed) for the web application, the username and password cannot be cracked for a long time.

2. URL manipulation through HTTP GET methods

A tester should check if the application passes significant information passed in the query string. It occurs if the application uses the HTTP GET method to provide information from the client to the server. The information is transmitted via the query string parameters. The tester can change a parameter value in the query string to see if it accepts it. User information for authentication or fetching of data is passed on to the server via HTTP GET request. The attacker may manipulate any variable input passed to the server by this GET request to obtain the requested information or to corrupt data.

3. SQL Injection

SQL Injection is the next factor to validate. The application should refuse the entry of a single quotation (‘) in any textbox. If the tester encounters a database mistake instead, the user entry must be inserted into an application query. The application is susceptible to SQL injections in those cases. SQL injection attacks are extremely critical because an attacker can obtain essential server database information. 

Find code in the codebase from which direct MySQL queries are performed on the database by accepting certain user inputs to verify SQL Injection points in your web application. In SQL queries to query the database, if a user input data is created, an attacker will inject SQL statements or parts of SQL statements to retrieve vital information from a database as user inputs. Even if an attacker succeeds in crashing the app, the attacker can obtain the information they want from the SQL query error on a browser.

4. Cross-Site Scripting(XSS)

A test should check the web application for cross-site scripting. The application should not accept any HTML; for example, <SCRIPT>should not be accepted by any application. If it is being accepted that the application could be prone to an attack by cross-site scripting. The attacker can use this method for executing a malicious script on the URL on the victim’s browser. Using cross-site scripting, an attacker could use JavaScript for stealing uses cookies and information stored in the cookies.


The main purpose of a security test is to discover web application vulnerabilities so that developers could remove them from the application and make the application and data safe from any unauthorized action.

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