CVE-2024-25876 is a critical cross-site scripting (XSS) vulnerability discovered in Enhavo CMS v.13.1. This vulnerability allows attackers to inject their malicious payload into the 'Title' text field, enabling them to execute arbitrary web scripts or HTML code.

In this post, we will provide an in-depth look at this vulnerability, including a code snippet, links to original references, and the details of the exploit.

Cross-Site Scripting (XSS) Explained

Cross-site scripting (XSS) is a type of security vulnerability that allows an attacker to inject malicious code into webpages viewed by other users. When successful, an attacker can use this malicious code to steal sensitive information, change the appearance of web pages, or even take complete control over the affected users' accounts.

Vulnerability Details: CVE-2024-25876

Enhavo CMS v.13.1 contains a vulnerability within the Header module. Specifically, the issue lies in the Title text field that does not sanitize user input properly. As a result, this enables attackers to input a malicious payload, which renders when other users view the webpage.

The following code snippet demonstrates the vulnerable portion in the Enhavo CMS v.13.1

<header>
  <h1>{{ page.title }}</h1>
</header>

In this code snippet, {{ page.title }} directly inserts the Title text field's content into the HTML structure without any sanitization. This makes it susceptible to XSS attacks.

Exploiting the Vulnerability

To exploit this vulnerability, an attacker can inject a malicious payload into the Title text field. Example payloads include:

1. <script>alert('Hacked!')</script>

<img src=x onerror=alert('XSS')>

3. <iframe src="http://evilwebsite.com"></iframe>;

When another user views a webpage with one of these payloads, the malicious script executes, potentially leading to stolen sensitive information or damage to the affected user's system.

Mitigation Strategies

To safeguard against this XSS vulnerability, users should immediately update to the latest version of Enhavo CMS, as the developers have released a patch addressing the issue. You can download the patched version from Enhavo's Official GitHub Repository.

Additionally, web developers should always follow secure coding practices, such as input validation and output sanitization. This can help prevent vulnerabilities like CVE-2024-25876 from impacting your website in the future.

Conclusion

CVE-2024-25876 is a critical XSS vulnerability that affects Enhavo CMS v.13.1 users. This vulnerability allows attackers to inject their malicious payload into the vulnerable 'Title' text field, potentially leading to stolen sensitive information, corrupted webpages, or hijacked user accounts. To protect your website against this vulnerability, ensure that you are using the latest, patched version of Enhavo CMS and coding securely.

For further information on CVE-2024-25876 and other related vulnerabilities, refer to the following sources:

1. CVE Details Original Reference
2. National Vulnerability Database (NVD)
3. OWASP Top Ten Web Application Security Risks

Timeline

Published on: 02/22/2024 14:15:47 UTC
Last modified on: 02/22/2024 19:07:27 UTC