Software security is a tricky and often overlooked element of software development. The trend toward the digitalization of everyday objects and appliances continues to grow, presenting new opportunities and risks for consumers, businesses, and developers alike. Software security risks have become an increasingly concerning topic as more people rely on connected devices every day. The massive volume of interconnected software applications makes it easy to overlook potential vulnerabilities. In fact, several high-profile security breaches in recent years have been caused by simple oversights in software development. These are commonly referred to as “vulnerabilities” or “bugs” in the code that cyber attackers exploit to access private data or control programs. Software security can be challenging because it’s not just one thing; it’s a collection of smaller issues that frequently go unnoticed until they become a big problem.

In this article you will learn about the top 25 common software security vulnerabilities so that you can avoid them as much as possible. If you work with code or are involved in any capacity with developing or testing software at any time in the future, you should understand what makes software such a prime target for hackers. Read on to learn more.

What are the different types of software security vulnerabilities?

There are many different types of software security vulnerabilities, and they can be found in a variety of places. One common location for these vulnerabilities is in the web application. Web applications are one of the most common targets for hackers, as they can be easily accessed and often contain sensitive information.

Another common type of vulnerability is an API abuse. APIs are used to connect different software components and can be abused to gain access to sensitive data or to take control of the system.

Input validation vulnerabilities are also common. These vulnerabilities occur when user input is not properly checked for validity, which can allow attackers to inject malicious code into the system.

Session management vulnerabilities are another common type of vulnerability. These occur when session management mechanisms are not implemented correctly, which can allow attackers to hijack user sessions and gain unauthorized access to the system.

Lastly, porous defenses and risky resource management are two other types of vulnerabilities that can lead to a system being compromised. Porous defenses occur when the perimeter defenses are not strong enough to withstand attack, while risky resource management can leave systems exposed to attack by mismanaging resources.

What is code injection and how can it be exploited?

Code injection is a security vulnerability that allows an attacker to inject and execute malicious code into an application. This can be done by manipulating the user input data that is sent to an interpreter. Attackers use code injection to gain access to unauthorized data or to take control of the system.

Injection occurs when the user input is sent to an interpreter as part of a command or query. The interpreter can be tricked into executing unintended commands and give access to unauthorized data. Often, this occurs when the user input is sent to the back-end database. An attacker can inject malicious content into the vulnerable fields, which may include sensitive data like user names, passwords, or even modify database data. In addition, administration operations can be executed on the database if code injection is exploited successfully.

To prevent code injection vulnerabilities, it is important to white list the input fields and avoid displaying detailed error messages that are useful to an attacker.

What is a buffer overflow and how can it be prevented?

Buffer overflows can be a major security issue for software programs. If an attacker is able to exploit this vulnerability, they can take control of or access your system. This type of attack is more common in software written in C and C++, but it can happen in any language.

Fortunately, many programming languages have automatic protection against buffer overflow attacks. If you’re using a language that provides this protection, you don’t need to do anything special to prevent these attacks. However, if you’re using a language that doesn’t provide this protection, you need to take steps to protect your program. One way to do this is to use a library that provides buffer overflow protection.

How can SQL injection be used to attack a database?

SQL injection is a technique used to attack a database by manipulating user input to execute unintended commands and access unauthorized data. This can be done by entering malicious code into an input field on a web page, or by passing it as a parameter in a URL.

When an attacker injects malicious content into a vulnerable field, they can gain access to sensitive data like passwords from the database. They can also modify or delete data in the database by using SQL injection.

Input fields and URLs that interact with the database are vulnerable to SQL injection attacks. So it’s important to be careful when entering information into these fields, and to make sure that all input is properly sanitized.

What is cross-site scripting and how can it be prevented?

Cross-site scripting (XSS) is a type of security vulnerability that allows attackers to inject malicious code into websites. This code can be used to hijack user accounts, access browser histories, spread Trojans and worms, control browsers remotely, and more.

XSS vulnerabilities can be very dangerous, as they widen the attack surface for threat actors and enable them to exploit vulnerabilities on websites. In order to prevent these attacks, it’s important to train developers in best practices such as data encoding and input validation. Sanitizing your data by validating that it’s the content you expect for that particular field, and by encoding it for the “endpoint” as an extra layer of protection can also help mitigate the risk of XSS attacks.

What are some common methods for securing data?

There are a number of ways to secure data. One common method is encryption. This involves transforming readable data into an unreadable format. Only authorized individuals with the right key can decrypt the data and make it readable again.

Another common method is authentication. This involves verifying the identity of a user before granting them access to resources. This can be done by asking for a username and password, or by using a token or other form of identification.

Finally, authorization is the process of deciding what actions a user is allowed to take on a system. This can be based on their identity (authentication), the type of data they are accessing, or the location from which they are accessing it.

What is Cross-Site Request Forgery, and how can it be prevented?

Cross-Site Request Forgery (CSRF) is a type of attack that occurs when a malicious website, email, or program causes a user’s browser to perform an unwanted action on a trusted site for which the user is currently authenticated. A CSRF attack forces a logged-on victim’s browser to send a forged HTTP request, including the victim’s session cookie and any other automatically included authentication information, to a vulnerable web application.

The best way to prevent Cross-Site Request Forgery attacks is to mandate user’s presence while performing sensitive actions. Implement mechanisms like CAPTCHA, Re-Authentication, and Unique Request Tokens to help verify that the user is who they say they are.

How can session hijacking lead to security breaches?

Session hijacking is a common attack vector used to gain access to user data or take over sessions. An attacker can exploit a session hijacking vulnerability to gain access to a user’s session ID and use it to take over the user’s session. This allows the attacker to access the user’s data and modify it without the user’s knowledge or consent.

Some common methods of session hijacking include stealing cookies or session tokens, exploiting vulnerabilities in session management mechanisms, and manipulating the session ID. If cookies are not invalidated properly, the sensitive data will exist in the system and can be accessed by an attacker. A check should be done to find the strength of the authentication and session management and keys, session tokens, cookies should be implemented properly without compromising passwords.

The session can be reused by a low privileged user, making use of this vulnerability an attacker can hijack a session and gain unauthorized access to the system. This allows the attacker to disclose and modify unauthorized information. The sessions can be high jacked using stolen cookies or sessions using Cross-Site Scripting (XSS). By exploiting these vulnerabilities, an attacker can gain access to a user’s data and modify it without the user’s knowledge or consent.

To prevent these attacks, it is important to follow the recommendations listed in the OWASP Application Security Verification Standard. This includes defining all the authentication and session management requirements as per the standard.

What is an elevation of privilege exploit, and how does it work?

An elevation of privilege exploit is a type of attack that takes advantage of a security vulnerability to gain elevated privileges on a system. This can allow the attacker to run malicious code on the system or access sensitive data that they would not normally be able to access.

Elevation of privilege exploits are often used by attackers to gain control of a system and achieve their goals, such as stealing data or installing malware. They can be very dangerous and can put the security of the system and its data at risk.

How can physical access to systems lead to security compromises?

It is essential to protect information assets by implementing physical security measures. If somebody can get physical access to the information asset, it is widely accepted that an attacker can access any information on it or make the resource unavailable to its legitimate users. However, many organizations do not take the necessary precautions to protect their systems.

There are a number of ways that somebody can gain access to an information asset if they have physical access to the system. One way is to steal the system itself. Attackers can also use removable storage devices, such as USB drives, to access information on the system. Additionally, attackers can install malicious software on the system to gain access to the data. Finally, if the system is connected to the internet, the attacker can use tools like Wireshark to capture network traffic and extract sensitive information.


Software remains susceptible to many known and common types of security vulnerabilities. These can lead to data breaches, stolen personal information and private user data, as well as a damaged reputation for companies which they may struggle to recover from. The best way to protect against these vulnerabilities is through the use of secure software development methods.

When it comes to software security, it’s important to understand that there will always be ways for hackers to find loopholes and vulnerabilities in code. It’s not a matter of if hackers will find these gaps, but when they will find them. Even the most secure software can have bugs that leave it vulnerable to attack. Thankfully, knowing how these vulnerabilities can exist is the first step toward creating more secure software.

After reading this article, you should now know the list the most common security vulnerabilities found in software and how you can address them.