VeePN Browser Extensions: Results from Independent Audit about Robust Security

Oliver Bennett

Jan 28, 2026

7 min read

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Global server network and general information about audit

VeePN covers more than 2600 servers across 89 server locations.. It intends to provide an exclusive connection speed. It enables you to surf the Internet effortlessly by routing traffic through a secure VPN server. There is no need to worry about bandwidth limits while maintaining private Internet access. VeePN offers a balanced experience focused on speed, stability, and user protection.

VeePN claims it is proud to present the results of this independent audit. VeePN Corp. requested to carry out a security assessment in February 2021 and then was quickly scheduled. A white-box approach was selected for this assessment. This enables a maximum possible breadth and depth of coverage. A team of two senior testers was provided by Cure53 to carry out an assessment. Cure53 was granted access to the uncompressed sources of Chrome and Firefox extensions with all other necessary information, test user accounts, etc.

Why independent audits actually matter

It is easy for companies to promise security. Proving it is another story.

Independent audits like the one conducted by Cure53 are important because they expose weaknesses before attackers do. In recent years, poorly audited browser extensions have caused serious incidents. For example, several Chrome extensions were removed in 2023 after researchers found they were silently harvesting user data.

By allowing a white-box audit, VeePN made its internal logic visible to professionals. This level of transparency is not common in the VPN market and aligns with a strict No Logs policy that lowers long-term risk for users.

What this audit means for everyday users

For non-technical users, audit results can sound abstract. But the takeaway is simple.

The issues found were limited, clearly documented, and fixed immediately. No critical flaws remained unaddressed. This lowers the chances of silent tracking, accidental leaks, or browser-based attacks.

In practical terms, this means users can rely on the extension for daily browsing without constantly worrying about hidden risks.

Preparation for assessment

VeePN Corp. performed all the needed preparations the week before the assessment to provide a smooth start for the Cure53 testing team. The process moved forward at a good pace. Communication was carried in an allotted and shared Slack channel which connected the workspaces of VeePN Corp. and Cure53. Noteworthy roadblocks were not discovered during the test.

Results of test

The Cure53 team tested and published VeePN review. They reported only three security-relevant discoveries. Two of them can be classified as security vulnerabilities, and the third is simply a general weakness with lower exploitation potential. One of the discoveries was given a “High score” because it led to a classic information leak that could expose a user’s IP address via the Squid proxy error page. This is the most widespread discovery for basic VPN services and proxy software setups.

Recommendations to remove the identified vulnerabilities

For the “User-information leaked in Squid default error page” vulnerability, it is advised to modify the generic Squid error page and remove all user-related information.

For the “Auto-Protect feature bypass via domain trimming” vulnerability, it is advised to remove the code path. This guarantees that the WebExtension tunnels the domain, which was added by the user.

For the “XSS in pop-ups via server status code” vulnerability, it is advised to replace the innerHTML property with a secure option like innerText. This enables the display of the error to the user without risking displaying unintended HTML tags.

Note that all vulnerabilities were addressed and fixed during the assessment.

Why browser extensions matter for real-world VPN use

Before diving deeper, it helps to understand why browser extensions are not just a “light” version of a VPN. For many users, they are the first line of defense when browsing daily sites, logging into accounts, or watching content on major streaming platforms.

Unlike a system-wide VPN app, a browser extension focuses directly on browser activity. That means it can react faster to risky websites, suspicious scripts, and tracking attempts that appear while browsing. This is especially important today, when many attacks start inside the browser itself.

Brief Conclusion

The general impression about Firefox and Google Chrome VeePN WebExtension is very positive. All issues reported via Slack were immediately addressed by the VeePN team. All the fixes have been verified. The low number of findings means that the Cure53 team can conclude this project (carried out in spring 2021) with excellent outcomes for the VeePN Corp.

VeePN Corp. wants to thank Cure53 for their assessment and pleasant collaboration. Both Cure53 and VeePN teams carried excellent project coordination, support, and assistance before and during the assessment.

The VeePN Browser Extension is in the proper direction concerning its security features and overall design. The most widespread browser proxy mistakes have been successfully shunned with the help of good design and implementation decisions. WebExtensions can be regarded as an advantage of a strong security model.

How VeePN compares to other VPN solutions

Many users assume all VPN tools work the same way. In reality, the difference between a browser extension and a full VPN setup can be significant.

Not just another VPN extension

A lot of extensions on the market act as little more than proxies. They route traffic but lack real protection. That is where VeePN stands apart.

VeePN is built on the same infrastructure as its full applications. This means users are not relying on a stripped-down tool. Instead, they benefit from the same backend security logic used in full VPN apps.

This approach reduces risks commonly seen in lightweight extensions, such as data leaks or unstable connections.

Real protection beyond a single browser

Another advantage is how VeePN fits into a broader security setup across multiple devices. Users can combine the extension with desktop or mobile apps without conflicts.

This is especially useful for people who switch between laptops, phones, and tablets while accessing services like BBC iPlayer. The protection stays consistent, regardless of the device or platform being used.

Key benefits users actually feel

Here is how these technical findings translate into real-life value:

Stable browsing security

The extension avoids common proxy mistakes that often expose users unknowingly. This keeps browsing sessions predictable and safe.

Better trust in the tool

Knowing an independent firm reviewed the product builds confidence. Users are not relying on marketing promises alone.

Smooth everyday use

The extension works quietly in the background while supporting features like split tunneling. There is no need for constant adjustments or technical knowledge

Customer support

Good support makes a real difference when something goes wrong. VeePN helps users resolve issues quickly without forcing them through complicated steps. This keeps the experience smooth, even for non-technical users.

Double VPN

Double VPN routes traffic through Double VPN servers instead of one for extra privacy. This adds protection for users who want stronger anonymity without changing how they browse. It is there when you need it, not forced on you.

Advanced features for security

Advanced security features such as a Kill Switch block common risks automatically. They work quietly in the background and do not require manual setup. This makes stronger protection easy to use every day.

DNS leak protection

DNS leak protection ensures that your browsing requests stay inside the encrypted connection instead of leaking to third parties. It prevents your ISP or websites from seeing what you access online. This keeps your activity private, even if the connection changes unexpectedly.

Final thoughts

Security audits are not marketing decorations. They are one of the few reliable ways to measure whether a VPN tool does what it promises.

This audit shows that the tested VeePN browser extension follows a solid security model, avoids common traps, and reacts quickly when issues appear. For users who want simple, reliable protection while browsing, this matters more than flashy claims.

Try using VeePN without risks, as we offer a 30-day money-back guarantee.

Written by Oliver Bennett Oliver Bennett is a dedicated cyber security content writer with a knack for breaking down intricate cyber topics into accessible and actionable insights.