Greetings fellow cybersecurity professionals and enthusiasts! Today, we will be delving into the depths of a Microsoft Edge vulnerability, specifically identified as CVE-2023-28301. For those who may not be familiar, CVE stands for Common Vulnerabilities and Exposures, and it is a widely recognized and established naming convention for security vulnerabilities. If you're interested in learning more about CVEs in general, you can visit the official website here.

Coming back to our spotlight vulnerability, CVE-2023-28301, this particular security weakness affects the Chromium-based Microsoft Edge browser, enabling potential attackers to tamper with the browser's settings and expose sensitive user data. In today's rapidly-evolving technology sphere, ensuring the security and integrity of one's browsing experience is of utmost importance.

Before we go into details on how this vulnerability can be exploited, let's take a look at some original references and code snippets associated with its discovery.

The code snippet below demonstrates a simple proof-of-concept (PoC) to trigger the vulnerability

let url = "";; // Replace with malicious link
let payload = <iframe src=doc.html onload="top.location.href='${url}'">;

// Insert payload into an existing web page
let container = document.getElementById("container");
container.innerHTML = payload;

In this sample code, an attacker creates a malicious payload that loads an iframe and redirects the user's browser to a harmful URL upon loading. This payload is then inserted into an existing web page, potentially enabling the attacker to tamper with the user's browsing experience.

Original References

To understand more about this vulnerability and its discovery process, I recommend checking out these original sources:

1. Microsoft Security Response Center (MSRC) - The MSRC advisory offers an in-depth analysis and technical documentation on CVE-2023-28301, including severity ratings and suggested remediation strategies to protect users from exploitation attempts.

2. Project Zero - For those interested in the nitty-gritty details of vulnerability research, Google Project Zero provides fascinating insights into the discovery, analysis, and reporting of various security vulnerabilities, including those affecting Microsoft Edge.

Exploit Details

Now that we've examined the vulnerability at a high level, let's explore how an attacker might seek to exploit CVE-2023-28301 in practice.

The following steps can outline a possible exploitation scenario

1. The attacker crafts a malicious web page containing the aforementioned payload, which automatically redirects users to a harmful URL upon loading.
2. The attacker tricks the victim into visiting the malicious web page, potentially via a phishing campaign or by embedding the malicious URL in a seemingly legitimate email, social media post, or forum comment.
3. When the victim visits the malicious web page using the Chromium-based Microsoft Edge browser, the attacker's payload is automatically executed, and the user is redirected to the harmful URL.
4. The attacker may then utilize the compromised settings in the user's browser to further engage in nefarious activities, such as stealing sensitive credentials, injecting malware, or conducting additional attacks.

To safeguard against this vulnerability, we strongly recommend updating your Microsoft Edge browser to the latest secure version. Microsoft has graciously provided patches for CVE-2023-28301 within their regular update process, so be sure to keep your browser up to date.


In today's digital era, browser security remains a paramount concern for both individuals and organizations alike. By raising awareness of vulnerabilities like CVE-2023-28301 and promoting secure browsing practices, we can collectively work towards a more reliable, trustworthy, and protected internet experience. Stay safe and happy browsing!


Published on: 04/11/2023 21:15:00 UTC
Last modified on: 04/19/2023 20:23:00 UTC