CVE-2024-25873: Enhavo v.13.1 HTML Injection Vulnerability in Author Text Field under Blockquote Module

A security vulnerability has been identified in the popular content management system (CMS) Enhavo, which could potentially allow remote attackers to inject and execute arbitrary HTML code within the web application. This vulnerability (CVE-2024-25873) exists in the Enhavo CMS version .13.1 and impacts the Author text field under the Blockquote module.

Exploit Details

The vulnerability exists due to improper input validation of the Author text field input under the Blockquote module. Using a specially crafted payload, attackers with the ability to enter data into this field can inject HTML code that could cause the application to perform actions unintended by its creators.

The following code snippet demonstrates how an attacker might exploit this vulnerability

<blockquote>
    <p>Example text...</p>
    <footer>
        <cite>
            <a href="#" onclick="alert('Injected Code')">An Attacker</a>
        </cite>
    </footer>
</blockquote>

This example shows an injected payload in the Author text field which, when executed, will display an alert saying "Injected Code."

Original References

For a detailed analysis of the vulnerability and how it was discovered, you can refer to the original security advisory report published by {Security Researcher's Name} ({Security Researcher's Company}):

[Original Security Advisory Report](Link-to-original-report)

It is essential to mention that the Author's Name field under the Blockquote module is the prime focus of this vulnerability. To better understand the issue, refer to the Enhavo Blockquote source code:

Mitigation and Solution

To mitigate this vulnerability, it is recommended to update immediately to the latest version of Enhavo, where security patches address the mentioned issue. The updated patch can be obtained here:
- Enhavo v.13.1 patched release

In addition to updating the software, developers and web administrators should take the following steps:

1. Implement proper input validation and output encoding for all user-generated content, ensuring that entered data is harmless and doesn't contain any malicious code.
2. Perform regular security reviews and updates of all third-party plugins and components within the Enhavo CMS.

Conclusion

It is fundamental for developers and web administrators to take the necessary steps to reduce the risks posed by the CVE-2024-25873 vulnerability. By performing regular software updates, enhancing input validation, and monitoring third-party components, Enhavo users can continue to maintain the security and integrity of their websites.

Timeline

Published on: 02/22/2024 14:15:46 UTC
Last modified on: 08/26/2024 19:35:23 UTC