Top Six Laravel Security Vulnerabilities and How to Fix them in 2023

Top Six Laravel Security Vulnerabilities and How to Fix them in 2023

As businesses continue to move their operations online, web application security has become more important than ever. The average cost of a data breach in 2021 was a staggering $4.24 million, according to a study by IBM. This highlights the importance of ensuring that your web application is secure and protected from cyberattacks.

No matter the framework your web application is built on, it can be vulnerable to attacks. However, some frameworks offer better security measures than others. Laravel, a popular PHP framework, is known for its robust security features. In fact, according to a study by Snyk, Laravel has the lowest percentage of security vulnerabilities among all major PHP frameworks.

Despite its strong security features, it’s still important to take additional steps to secure Laravel applications, especially for building enterprise applications that may hold sensitive data. This is where Laravel security tips come in handy. By following best practices for Laravel security, you can further strengthen your web application’s defense against potential cyberattacks.

In this blog, we’ll explore top six laravel security vulnerabilities and how to fix them by making your laravel web application secure. Whether you’re a developer working on a Laravel project or a business owner looking to ensure the security of your web application, this blog will provide valuable insights to help you protect your web application from potential security threats.

Laravel Security Vulnerabilties: Top Six Laravel Security Glitches along with Solutions

No matter how secure Laravel is, developers have found severe security glitches in the framework time and again. As the framework is constantly evolving, developers may not always be up-to-date with the latest security patches and features. Additionally, developers may not be familiar with best security practices or may not have enough time to implement them. 

Here’s why it’s important for developers to be aware about the laravel security vulnerabilities along with the solutions. In following points, let’s discuss some potential security vulnerabilities in laravel web applications along with the ways to handle them. 

Sensitive Data Exposure

One of the top three API Security threats listed by OWASP is excessive data exposure, which occurs when an API responds to a request with more data than necessary, often appearing as a design flaw. If an attacker finds a method that returns specific fields, they can access the data using an unprivileged account. These vulnerabilities can cause severe data breaches, such as leaking user information and legal liabilities.

However, you can avoid similar damages by following these practices:

  • Ensure that your entire application runs solely on HTTPS, with a TLS certificate, and HSTS headers to provide secure access for users.
  • Laravel provides excellent password security through an adaptive salted hashing function and supports Bcrypt and Argon2, which should be utilized.
  • Save time and effort by using Laravel’s built-in encryption functions to encrypt sensitive data that has already been stored.

Broken Authentication

Broken Authentication is a serious vulnerability that allows attackers to bypass the authentication mechanism of a web application, potentially granting them unauthorized access to sensitive information. Hackers can exploit broken authentication in a variety of ways, including intercepting HTTP requests that contain sensitive data transmitted over an unsecured protocol, exploiting the use of weak passwords, and using phishing tactics. This vulnerability is a serious issue in web applications, as attackers can gain access to millions of valid username and password combinations using various automated tools, such as credential stuffing, dictionary attacks, and automated brute force attacks, according to OWASP. 

Here’s how you can secure your laravel web application from broken authentication security vulnerability:

  • Prevent against session hijacking:It’s important to enable HTTPS for all requests as a measure that can prevent or defend against session hijacking in Laravel applications. By encrypting all HTTPS requests using TLS, the communication between client and server becomes secure and makes it difficult for anyone to steal session IDs.
  • Prevent against stolen login credentials: Stolen login credentials is a kind of vulnerability tactic when a hacker obtains the actual username and password of the victim. Like the previous example, attackers can use various methods and techniques to steal user login information. To prevent this, developers can rely on setting up a strong password policy that involves both uppercase and lowercase letters in passwords, as well as numbers and special characters. 

Broken Access Control

A Broken Access Control is a vulnerability that occurs when a user is granted access to areas of the web application they should not be able to access, potentially exposing sensitive information.

Ten years ago in 2011, Citigroup experienced a severe data breach in which hackers exploited the poorly managed data of over 200,000 customers. This incident highlights the importance of avoiding broken access control, as authorization checks are crucial and it is not sufficient to store customer data simply by changing digits in the URL. To prevent similar incidents, it’s essential to:

  • Implement authentication checks to verify the identity of users accessing their accounts while they are logged in.
  • Take advantage of Laravel’s Role-Based Access Control packages to manage user permissions.

Security misconfiguration

In the past, it was a common occurrence for unsecured AWS (Amazon Web Services) S3 buckets or Elasticsearch servers to be discovered, containing millions of customer details. This issue became so widespread that AWS eventually made S3 uploads private by default and issued explicit warnings if data was made public.

To minimize the risk of being exploited, it’s crucial to configure applications securely and keep them updated frequently. To achieve this, developers need to keep their server and library dependencies up to date, and disable all debugging output that might reveal details about the system or sensitive configuration values. Laravel offers a configuration setting that makes this process simple.

Cross-site Scripting (XSS)

Cross-site Scripting (XSS) attacks are a serious security vulnerability in web applications, including those built with Laravel. These attacks occur when an attacker injects malicious scripts or code into a web page, which then gets executed in the browser of a victim visiting that page. To prevent such attacks, Laravel offers a number of built-in features that can be leveraged by developers.

One approach is to use Laravel’s Blade template engine, which automatically escapes all output by default, preventing the injection of untrusted data into the page. Developers can also use Laravel’s input validation features to sanitize user input and prevent the inclusion of dangerous code. Additionally, Laravel provides the ability to set Content Security Policy (CSP) headers, which can limit the execution of scripts to only trusted sources. This helps prevent attackers from executing their own scripts on the page.

Another useful tool in preventing XSS attacks is the use of HTTP-only cookies. These are cookies that are set to be accessible only through HTTP, preventing JavaScript from accessing them. By using HTTP-only cookies, developers can prevent attackers from stealing sensitive session information or authentication tokens.

Insufficient Logging and Monitoring

This vulnerability occurs when a web application does not log important security events, making it difficult to detect and respond to potential security breaches. To protect against Insufficient Logging and Monitoring attacks, it is important to establish effective logging and monitoring mechanisms. All actions and events in the application, such as login attempts, data modifications, and system errors, should be logged and stored securely in real-time to enable quick detection and response to any suspicious activity. Additionally, intrusion detection and prevention systems should be put in place to actively monitor network traffic and block any potential attacks. Regular audits and vulnerability assessments can also help identify and address security gaps. Finally, all security incidents and breaches should be fully documented and analyzed to determine the root cause and prevent future incidents. By taking a comprehensive and proactive approach to logging and monitoring, Laravel web applications can better defend against Insufficient Logging and Monitoring attacks.


In conclusion, Laravel is a popular and powerful web application framework, but it’s not immune to security vulnerabilities. As we discussed, there are six major security vulnerabilities in Laravel web applications, including sensitive data exposure, broken authentication, broken access control, security misconfiguration, cross-site scripting (XSS), and insufficient logging and monitoring. However, with the right measures and best practices, these vulnerabilities can be mitigated or even eliminated. By keeping the application updated, securing passwords and sessions, implementing proper logging and monitoring, and conducting regular security audits, Laravel web applications can be well-protected and secured in 2023 and beyond. It’s important to take these security vulnerabilities seriously and stay vigilant to ensure that your web application is secure and protected from potential attacks.

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