The world of cybersecurity is always evolving as threat actors continuously look to exploit vulnerabilities and compromise system security. Recently, a new vulnerability was identified in Microsoft Edge for iOS, dubbed CVE-2023-36883. This vulnerability can lead to spoofing, enabling an attacker to impersonate a legitimate website and gain unauthorized access to the user's personal information or deceive the user into providing sensitive information. In this long-read post, we will dive deep into the details of this exploit, analyze the relevant code snippets, and provide links to the original references. Ready to learn about CVE-2023-36883? Let’s dive in!

Understanding the vulnerability - CVE-2023-36883

CVE-2023-36883 is a spoofing vulnerability found in Microsoft Edge for iOS. This exploit allows an attacker to create a malicious website that mimics the look of a legitimate website; as a result, unsuspecting users may input their sensitive data like login credentials, personal information, or financial data, thinking they are on a trusted website. The vulnerability lies in the way Microsoft Edge for iOS handles the browser's address bar and the information displayed on it.

Code Snippet

Let's take a look at a sample code snippet that showcases how this vulnerability can be exploited. Please note that this code is for educational purposes only and should not be used for malicious intents.

<!DOCTYPE html>
    <title>Malicious Site - CVE-2023-36883</title>
      function spoofAddressBar() {
        history.pushState({}, "", "";);
  <body onload="spoofAddressBar()">
    <h1>Hey there! Did you notice that the address bar is spoofed?</h1>
      Enter your sensitive information here and click submit. Just
      kidding, don't! This is an illustration of the CVE-2023-36883 vulnerability.
      <label for="username">Username:</label>
      <input type="text" id="username" name="username" /><br />
      <label for="password">Password:</label>
      <input type="password" id="password" name="password" /><br />
      <input type="submit" value="Submit" />

In the code snippet above, we use the JavaScript history.pushState() function to change the URL displayed in the address bar to "" when a user visits the malicious site. This can easily fool a user into thinking they are on the legitimate website and persuade them to input their sensitive information.

Original References

1. Exploit-DB contains a thorough description of this vulnerability, and you can find it by searching for the CVE-2023-36883 identifier.
2. The Common Vulnerabilities and Exposures (CVE) site also offers a detailed explanation of this vulnerability, its potential impact, and the affected software.
3. Microsoft's Security Update Guide provides information on steps taken by Microsoft to address this vulnerability, as well as affected products and mitigation measures.

Mitigation and Patch

It is crucial to stay up-to-date with the latest security updates for the applications you use. As soon as CVE-2023-36883 was identified and confirmed, Microsoft addressed the issue with a security update. Ensure that Microsoft Edge for iOS is updated to the latest version to prevent exploitation of this vulnerability. You can find the latest version of the browser in the Apple App Store.


CVE-2023-36883 is a critical vulnerability that endangers the private information of Microsoft Edge for iOS users. By understanding the exploit details, examining code snippets, and referring to original references regarding this vulnerability, you can better protect yourself from potential threats. Moreover, always keep your applications updated and remain vigilant about the websites you visit and the information you provide.


Published on: 07/14/2023 18:15:00 UTC
Last modified on: 07/14/2023 19:46:00 UTC