Web Application Penetration Testing

Keeping prowling web app hackers at bay with experienced pentesters who can effectively identify, analyze, and test security flaws.

web app penetration testing services

What Is Web Application Penetration Testing?

Web App Penetration Testing is a testing strategy in which hacker-style attacks are stimulated in your application to reveal potential vulnerabilities. Pentesting is usually undertaken to mitigate the risks in an application before real-world hackers can exploit them. Web3 is a sensitive industry as it involves a large number of digital assets and funds. Once your smart contracts, aka backend, are secured, you also need to focus on the other end of security, i.e. the frontend part. Penetration Testing ensures that both, Web2 and Web3 bugs are uncovered and eliminate possible threats.

Common Security Testing Flaws During Web3 App Pentesting

A web application often has many backdoors left open for hackers to attack; it is always best to shut all of them before deploying your application. With ImmuneBytes’s extensive Pentesting process, you get this surety!

Cryptographic Failures

Cryptographic operations in an application sometimes are often misused or misconfigured. The vulnerabilities, such as using string encoding instead of an encryption algorithm, increase the chances and severity of damage in an application.

Weak Server Side Controls

Server-side security is a crucial part not only in Web2 but Web3 as well! A hacker can take advantage of a weak server side and penetrate your system. Developers often become so focused on securing smart contracts that they tend to ignore these basic security measures.

Insecure Data Storage

Developers are prone to assuming that malware will not reach a device’s filesystem and store important data on the client side. However, this can prove to be very dangerous if client-side storage is compromised and all your data is exposed.

Transport Layer Vulnerabilities

TLS offers much-needed security in many situations but is still susceptible to attacks by cybercriminals trying to gain access to the organisation’s confidential data. Digital signing of API queries and responses for dApps is essential.

Data Leakage

Even the smallest erroneous piece of code can become the reason for a data leak. Web3 applications store sensitive data of users; keeping it safe is something that should be of utmost importance.

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Benefits of Web App Penetration Testing Services

The security experts at ImmuneBytes have excelled in this testing strategy due to a thorough understanding of blockchain concepts and web security parameters. Web Application Penetration Testing offers many advantages, some of which are:


Reveals code blocks that cause data leakage.


Gives a real-world hacker’s perspective on an application.


Enhances code coverage on both the backend and front end.


Ensures strong authentication, authorisation and encryption mechanism.


Identifies and removes security loopholes.

Why Choose Us?

ImmuneBytes is empowered by a team of ethical hackers that are proficient in their jobs. We expose even the smallest of vulnerabilities present in your dApps, Wallets, and Exchanges. Reach out to us and get your Web3 applications pen tested today!

API Testing

We check your application’s API endpoints for security threats and offer methods to improve the authorisation mechanisms and close any open routes.

Multiple Testing Methodologies

Choose to keep your application in a white, black or grey box. Our ethical hackers are adept with all three techniques of penetration testing.

Custom Attack Vectors

Our team tests an application against customised Web3 attack vectors along with the traditional Web2 parameters for overall system security.

OWASP Application Testing

OWASP, the open-source community, releases a list of top concerns for web app security. We check all those vectors under Dynamic Application Security.

Extensive Vulnerability Reports

Once the testing process is complete, we combine all the findings into a pdf format. Each bug is listed along with its test case and a summary of the testing methodology undertaken.

Quick Turnaround Time

It often takes less than 4-5 days to perform pentesting on an application. However, deadlines will always be decided based on your code size, testing strategy preference and other factors.

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Want to get your web application tested? Here are some of the most commonly asked questions!

Firstly, information about the application is gathered, such as the technology stack, the smart contracts running the app, the baselayer consensus mechanism, etc. Then, a team of ethical hackers is assigned to stimulate various attacks to find bugs in the system using multiple tools. Finally, the findings will be documented with recommendations for fixing them.

The major difference between Web3 security and Web2 security testing is patching and preventing. With Web2, if a bug is discovered later, it can be patched with the fix. However, it is essential to prevent bugs in Web3 apps due to their immutable nature. The attack vectors and hacking techniques vary largely between Web2 and Web3.

Projects like Wallets, Decentralized Exchanges, Marketplaces, DeFi Protocols, Dapps, Gaming Platforms, and more can be pen tested. Any project that is being deployed on the mainnet should undergo penetration testing.

We follow the security standards such as OSCP, OSCE, OSWE, MASVS, CISSP and OWASP. We make sure your application follows all the security guidelines and regulations.

The tools we deploy for Penetration Testing of Web3 applications are Postman, BurpSuite, Diresearch, SonarQube, Wireshark, SQLmap, and Metasploit. These tools have been used by industry veterans for years and help our team conduct a better analysis.

Pentesting is a security best practice. It is one of the best ways to check the security of your internal processes. If you’re making bigger changes to your system, adding new features, transferring data to a new cloud or changing code, you need a pentest. It is a good idea to test your Web3 applications periodically.

The cost of a single round of penetration testing depends on the technology stack, the codebase size, how tightly the application is integrated, and the preferred testing methodology for pen testing.