php web development company

6 Instances of PHP Vulnerabilities and How You Can Avoid Them

  • December 5th, 2022
  • Development

PHP is not the most appealing programming language available today. For new projects, developers typically pick more modern technologies such as NodeJS.  

PHP has a lot to offer, especially with version 7.0. Whether you like or loathe PHP, it powers many websites for software product development company.  

You're certain to come across PHP sooner or later, so you'd better be ready. Because of PHP's loose structure and simplicity of use, there is a lot of PHP code that needs to be created by experts or adhere to the most recent industry best practices.  

This suggests, among other issues, an abundance of security flaws in such systems. As a web developer, you must keep your client's information secure.  

In this blog, we'll describe some of the issues with PHP and how to solve it. Keep reading to know more. 

PHP Issues You Need to Know and Solve Right Away 

Error Handling Errors 

Passing an unexpected value to the program may produce an error, resulting in the disclosure of the stack trace or other information. An attacker can use this information to make informed assumptions about the program, which may make breaking into the system simpler. 


Switch off the Debugger Mode in the code and conduct a source code check, testing which parameters may be causing the issues. If an issue occurs, ensure that the user is sent to a 404 page and that suitable error handling is implemented. 

Cross-Site Scripting 

Cross-site scripting (XSS) is PHP's most prevalent hacking technique. An XSS security flaw allows hackers to run malicious JavaScript designed to cause harm to the targeted website. 


  • User input validation 

  • Make use of Escaping 

  • Make use of a WAF (Web Application Firewall) 

Invalid Input Errors 

The most prevalent PHP vulnerability is an unvalidated input error. Input refers to user-provided data that should not be trusted. It might be a hoax or something nasty. To design a secure PHP web application, you must validate all user inputs. 


Restrict user input; if any letters or symbols should not be included, reject them, or strip them out. 

SQL Injection 

SQLi is one of the most prevalent and well-known PHP framework development vulnerabilities, a major issue. This is accomplished by someone adding a SQL argument, such as a database statement, as a value in a form, or even your URL. The PHP program may then interpret it as genuine code and execute it, possibly exposing you to serious dangers.  


The simplest approach to avoid this issue is to always to use prepared statements to validate values entered into any field.  

Session Hijacking Errors 

Session hijacking is another type of attack that attackers may employ against you. In this case, the attacker takes the current user's session ID and then gains access to his apps. This is usually accomplished using an XSS attack. However, gaining access to the server folder containing session data kept is also possible. 


Make the cookie expire on logout, and generate a fresh cookie on each login. 

Bypass Authentication 

The bypass of authentication is the consequence of a development fault. It happens when an app incorrectly validates a user's credentials and unwittingly grants them higher access. 


To avoid the authentication bypassing PHP vulnerability, developers must evaluate the code. It guarantees that no logical errors occur throughout the authentication and tokenization operations. Before allowing access, you should get to know the user well. 

Evaluate and Approve! 

As a PHP software development company, you have a lot of obligations when it comes to designing and protecting PHP online applications, and we feel your pain. This post was intended to assist you in determining all of the flaws and defects and provide you with the finest and most viable remedies to get you out of the difficulties. The finest thing is to learn how to safeguard your website and be familiar with all the available tools and technologies. 

Last updated December 5th, 2022

Chat Box