Website security is the last thing many businesses would worry about while they are in the process of building their website. Even if a security expert on the website is employed in their department, they will always concentrate on how and when to live their websites-leaving significant vulnerabilities unattended.

You have to understand that a proactive and defensive approach to website security has to be effective. This is a gentle reminder to you that the protection of websites needs to be taken seriously. It’s good to worry about the bad effects it has on your business and your reputation.

List of 5 security issues on website and notable website creation errors you should know:

  • Security Issues with Websites #1: Injection Mistakes
  • Security Issues with Websites #2: Cross Site Scripting (XSS)
  • Security Issues with Websites #3: Not Updating Security Settings
  • Security Issues with Websites #4: Exposing Sensitive Data
  • Security Issues with Websites #5: A Lost Function Level Access Control

Security Issues with Websites #1: Injection Mistakes

Unless you want a smooth buffer of untrusted data, defects in injections need to be avoided at all costs. An injection vulnerability will allow you to transfer unfiltered data to the SQL server, browser, LDAP (LDAP injection) server, or anywhere else. A hacker can use those website layers to insert commands. That can lead to data loss and hacking of your own website. It can potentially infect other websites too.

Security Issues with Websites #2: Cross Site Scripting (XSS)

This is another form injection vulnerability that can input sanitization failure. A hacker sets up your web application JavaScript tags on input. When this input is returned to the user unsanitized, the user ‘s browser will carry it out. It can be as simple as making a link and persuading a user to click on it, or it can be much more sinister than that. The script runs on page loading, and can be used to post the cookies to the hacker, for example.

Security Issues with Websites #3: Not Updating Security Settings

Any responsible security staff on the website will also make sure that the security settings such as passwords and authentications are personalised. Some people might still be human for missing important things in their jobs. There are some specific scenarios:

  • They let the application run in production with debug allowed.
  • Default keys and passwords didn’t change.
  • They left the directory listing enabled on the server, which leaks valuable information.
  • They allow for unnecessary machine-operated services.
  • They operated an outdated software (think WordPress plugins, old PhpMyAdmin).
  • They didn’t fix the error information on some pop-up messages.

Security Issues with Websites #4: Exposing Sensitive Data

For a website security team, it’s a big mistake – not to encrypt and not secure the confidential data. Data (such as credit card details) and user passwords should never move or be stored unencrypted, and always hash passwords. And while it goes without saying that the URLs should not fly with session IDs and sensitive data. In addition, the safe flag should be on sensitive cookies, this is very critical and can not be over-emphasized.

Security Issues with Websites #5: A Lost Function Level Access Control

Failure to issue an authorisation may also interrupt your website. This means that no proper authorization was implemented when a function is called on the server. Often times, website developers rely on the fact that the UI was created from the server side. They think that the client can not access the functionality which is not provided by the server. It’s not as easy as they thought, as a hacker can always make fake requests to the “hidden” app, and it won’t be stopped by the fact that the UI doesn’t make this feature easily accessible. Nothing can stop an attacker from discovering and abussing this functionality if there is no authorisation.

It is important to always remember that the 5 security issues with the above mentioned websites are just a few to mention. There are many more security issues on website that website security staff struggle with as technology develops and improves.

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