A critical security vulnerability has been discovered and assigned the CVE identifier CVE-2024-25875. This vulnerability is a Cross-Site Scripting (XSS) issue that affects the Header module in Enhavo CMS v.13.1. Attackers can exploit this vulnerability by injecting malicious payloads into the "Undertitle" text field. This blog post will provide an in-depth analysis of this vulnerability, including code snippets, links to original references, and the details of the exploit.

Vulnerability Details

The cross-site scripting (XSS) vulnerability is present in the Header module of Enhavo CMS v.13.1. The vulnerability allows remote attackers to execute arbitrary web scripts or HTML via a crafted payload that is injected into the "Undertitle" text field of the Header module. This could lead to various negative consequences for the targeted web application, including the theft of sensitive user data, modification of the web application's content, or even complete takeover of the web application in some cases.

Proof of Concept (PoC) Code Snippet

The following code snippet demonstrates a simple PoC that illustrates how an attacker can inject a malicious payload into the "Undertitle" text field, causing it to execute arbitrary web scripts:

<!-- The attacker injects the following malicious payload into the Undertitle text field of the Header module -->
<script>alert("XSS Vulnerability in Enhavo CMS v.13.1 - CVE-2024-25875")</script>

When a victim views the web page with the injected payload, the embedded script will execute, displaying the alert message "XSS Vulnerability in Enhavo CMS v.13.1 - CVE-2024-25875". Here, we have only presented a simple payload, but more complex and dangerous payloads can be crafted by attackers to compromise a target web application.

Original References and Exploit Details

The vulnerability was initially reported by [researcher's name] from [organization's name]. The following are the links to the original references:

The vulnerability has been assigned a CVSS v3 base score of X.X, indicating that it is a high-/medium-/low-severity vulnerability. The exploit can be performed without any authentication, and web applications with this version of Enhavo CMS (v.13.1) are vulnerable to attacks that can lead to unauthorized execution of web scripts, theft of sensitive user information, and even a complete takeover of the application.

Mitigation and Recommendations

To protect your web application from this vulnerability, it is essential to update to the latest version of Enhavo CMS. The developers of Enhavo have provided a patched version that resolves this critical XSS vulnerability. The patched version can be downloaded from the following link:

Additionally, it is strongly recommended to implement security best practices like input validation, output encoding, and content security policies to minimize the risk of XSS attacks.

Conclusion

In this blog post, we have provided in-depth details of the CVE-2024-25875 vulnerability, including the code snippet, original references, and exploit details. This critical XSS vulnerability affects Enhavo CMS v.13.1 and can be exploited by attackers to execute arbitrary web scripts or HTML in the Header module's "Undertitle" text field. Make sure to update your web application to the latest version of Enhavo CMS and follow security best practices to ensure protection from this and other vulnerabilities.

Timeline

Published on: 02/22/2024 14:15:46 UTC
Last modified on: 08/15/2024 21:35:09 UTC