Common Web Security Vulnerabilities

In this ever-evolving digital landscape, keeping a website safe & secure is of utmost importance.  Cyberattacks are quite prevalent in the web sphere, but you need to tighten your website security by having many layers of defence otherwise, hackers & cyber-thieves will attack your website. Web security is a major concern that every business should take into consideration otherwise, all their sensitive information will get into hackers’ hand.

The best way to deal with web security issues is to prevent security vulnerabilities. On average, websites experience around 22 attacks every day which clearly shows how a single website vulnerability can weaken your website’s security. Many businesses don’t take their website’s security as a priority due to which their website easily get hacked & all the efforts they’ve put in their website go in vain. To keep your website safe & secure, you should be aware of all the website vulnerabilities & how to deal with them.

Some common web vulnerabilities can potentially tarnish your web presence making your business suffer. Web security experts also suggest that customers also avoid using those websites that don’t give importance to their web security. You need to keep your website safe & secure so that hackers, spammers, and bots stay away from your site.

In this article, we’ve rounded up some of the most common web security vulnerabilities that can result in breaching your web security:

SQL injection

One of the most common web security vulnerability is SQL injections. It allows hackers to gain access to unauthorized data by manipulating the user-supplied data. The hacker injects commands as user inputs to the interpreter tricking him to execute unintended command & expose the back-end database. The SQL injection happens when the administrator of the website overlook the importance of filtering untrusted input due to which hackers get access to the unauthorized back-end data.


  • The sensitive data of users can get into the hands of hackers
  • Hackers can insert/update/delete the back-end data
  • Hackers can inject malware into the site

How to prevent it?

  • Avoid displaying the details of the error
  • Filter your input data

Broken authentication & system management

The next common web vulnerability is broken authentication & system management. For every valid session, the website creates session ID & cookie which stores sensitive information. If the session ends & the cookies data aren’t invalidated then it can easily get compromised. Also, when it comes to using a public computer, always make sure to logout from your account instead of closing the browser otherwise, the person who uses that system after you can steal your information that’s why it is always essential to invalidate the cookie session. You need to keep your users’ credentials safe & secure otherwise, attackers can easily hijack your website.


  • Hijack using stolen cookie
  • Hacker can gain unauthorized access to the system

How to prevent it?

The best way to protect your site from broken authentication vulnerability is by using the correct framework which will tighten the security of your website. If you are thinking about running your codes then you should have enough knowledge to avoid the pitfalls.

Cross-site scripting

Cross-site scripting or XSS is a vulnerability where the user is tricked into doing an action that doesn’t intend to do. This attack allows the attacker to execute malicious scripts on the user’s browser directing him to act. The attacker can create a fake link, and persuade the users to click on it which can give him access to the sensitive data. This vulnerability is directed towards the user’s side by sending untrusted data to their browser without validation which makes it possible for the hijacker to redirect the users to malicious sites.


  • Using this vulnerability, the attacker can steal session cookies
  • Attackers can redirect users to malicious sites.

How to prevent it?

To safe your website from getting affected by this vulnerability, make sure not to return HTML tags to the users.

Security Misconfiguration

If the security configuration is not well-defined for applications & frameworks then it becomes easier for the attacker to get access to the sensitive data. Lack of proper attention or maintenance can potentially screw up your website. Perhaps, it becomes essential to keep your system’s software up-to-date so that no one can breach the security of your site.


  • Using this vulnerability, attackers can easily gain information about your application server version, database information, etc.

How to prevent it?

You can save your website from getting affected by this vulnerability by having an automated build & deploy process so prevent the security misconfiguration.

Sensitive data exposure

The next major vulnerability that can affect your website is sensitive data exposure. To safeguard the sensitive data, it is highly crucial to encrypt all the sensitive data at all time. All the data related to payment cards or password should not be stored unencrypted otherwise, the attackers can easily have access to it.


  • Using this vulnerability, the attackers can easily get access to the personal data of users stored in your site.

How to prevent it?

The best to avoid the risk of this vulnerability is by lowering down the exposure. Avoid storing sensitive data like card details of your users. If you want to store then make sure to encrypt it before storing it in your database.

So, these are a few common web security vulnerabilities that you need to avoid to make your website run smoothly.

Final Thoughts

Wrapping it up, we can say that the best way to keep your website safe & secure is by having a great defence layer that will keep your website away from vulnerabilities.