The most common mistakes to avoid when developing a web application are the following:

The development of web applications is a lengthy process, since a user-friendly app is created from the start, which at the same time ensures high performance and web security. For all developers, the security of web applications is an area that is partly beyond the control of the creator, since it cannot even be guessed who is at the other end of the HTTP connection.

Therefore, you have to struggle with too many web security problems to create a safe and secure app. Some of these concerns concern data security and the possibility that fake data may get into the database. Below are 10 of the most common vulnerabilities on the web that users can avoid.

1. Allow invalid data to enter the database

All inputs provided by your users must be included with all defenses. Failure to validate what you receive could result in you paying a high price for possible cross-site scripting, SQL injection, command injection, or a similar security threat.

a2. Focus on the system as a whole

This is evident when considering large custom projects where a team of developers split the work to secure different areas of the app. In fact, it is not entirely clear with the project as a whole, even if the individual safety of these parts could lead the class. Indeed, this is a popular method of causing multiple submissions, making your data extremely vulnerable to attackers. You must therefore ensure that your app is still secure even when all components are brought together.

3. Establish personally developed security methods

Developers usually assume that they will do better with a proprietary algorithm or method. This is because they believe that if it is more authentic, it could be increasingly safer since it is unfamiliar to hackers. In reality, however, authentication is not only an expensive process, but also increases the chance of creating security gaps that can be discovered very easily. Proven libraries are considered the best way to do this whole process.

4. Treat security as the last step

Security is not an easy thing to insert towards the end of a process. It must be built in as the basis for the entire project and should not be ignored as another function that can be developed at any time. In such scenarios, your application is prone to misconfigurations and other vulnerabilities such as SQL injections.

5. Develop password storage in plain text

Internet security can be further improved by securely storing passwords. Saving passwords in plain text format is the most common and dangerous error and should be avoided. Only passwords and important data should be stored in the database.

6. Create weak passwords

As a developer, if you are concerned with the security of the app, you need to create clear rules for passwords.

7. Store unencrypted data in the database

The unencrypted storage of all important details is one of the most common mistakes in connection with data storage. As a result, user data is compromised whenever your database is compromised. If your database is under attack, encryption is considered the only way to prevent a large loss of information. All developers should take into account that hackers can attack anything that is stored online.

8. Depending on the customer side

On the client side, the code is heavily dependent on a developer losing control of the critical functions of the app, thereby losing a lot of control over security.

9. Be too optimistic

A good developer should always be aware of the fact that developing web security is a never-ending process due to the constant possibility of vulnerabilities. Therefore, a good developer should always be ready to find and fix the bug.

10. Allow variables using the URL path name

Placing variables in the URL is a very serious mistake that anyone can make, because normally all files with important data that your app contains can be downloaded freely.

These common vulnerabilities on the web represent the fact that security should come first for all developers, regardless of whether they are working on a startup system or developing a large business project.