CVE-2024-26467 - DOM Based Cross-Site Scripting Vulnerability in Tabatkins/Railroad-Diagrams

A newly discovered security vulnerability, identified as CVE-2024-26467, has been found in the component generator.html of tabatkins/railroad-diagrams before commit ea9a123. This vulnerability is a DOM-based Cross-Site Scripting (XSS) vulnerability that could potentially allow an attacker to execute arbitrary Javascript code by sending a crafted URL.

Description

Document Object Model (DOM) XSS is a particular type of XSS, where the malicious payload is executed as a result of modifying the DOM environment in a target's browser, rather than directly invoking an unsafe script tag. In this case, the vulnerability lies in the component generator.html of the tabatkins/railroad-diagrams project.

Exploit Details

For this exploit to work, an attacker needs to craft a URL that embeds the arbitrary Javascript code. When a victim clicks on the URL, the victim's browser loads the generator.html page, and the supplied malicious Javascript payload is executed.

For example, the following crafted URL contains an embedded XSS payload

https://vulnerable-site.com/generator.html#payload=<svg%20onload=prompt(1)>;

In this case, the payload is a simple Javascript code that displays a prompt dialog with the value "1". When a user clicks on this URL, the malicious payload is executed, resulting in the prompt being displayed in the user's browser.

References

- CVE-2024-26467 Vulnerability in the National Vulnerability Database
- Tab Atkins' Railroad-Diagrams GitHub repository
- Commit ea9a123 in the Railroad-Diagrams repository

Mitigation

It is essential to update the tabatkins/railroad-diagrams project to the latest version containing the fix for this vulnerability. The specific commit that addresses this issue is commit ea9a123.

To update your project, simply navigate to the GitHub repository and pull the latest changes

git pull origin master

Or, if you are using the project as a dependency in your project, update the version in your dependency management tool, such as npm or yarn:

npm update railroad-diagrams

OR

yarn upgrade railroad-diagrams

Conclusion

It is crucial to stay up-to-date with the latest security patches and updates for software packages and libraries, as this helps minimize the risk of security vulnerabilities such as CVE-2024-26467. By taking appropriate action in response to identified security vulnerabilities, we can work towards a more secure web environment for all users.

Timeline

Published on: 02/26/2024 16:27:59 UTC
Last modified on: 02/26/2024 16:32:25 UTC