A recent vulnerability, identified as CVE-2023-38400, has been discovered, and it affects the popular WordPress theme, Kriesi Enfold - Responsive Multi-Purpose Theme. The vulnerability is classified as an Improper Neutralization of Input During Web Page Generation, also known as a Cross-site Scripting (XSS) vulnerability. This vulnerability allows malevolent actors to inject harmful scripts into web pages, leading to a potential Reflected XSS attack. The vulnerability affects versions of the Enfold theme up to and including 5.6.4.

In this comprehensive article, we will delve into the details of CVE-2023-38400, the mechanisms that drive its exploits, and the steps that can be taken to mitigate its impact. We will also include some code snippets, original references, and information to assist you in understanding and defending against this critical vulnerability.

Understanding the CVE-2023-38400 Vulnerability

Cross-site scripting (XSS) vulnerabilities arise from improper neutralization or handling of user inputs during the process of webpage generation. In the case of CVE-2023-38400, the vulnerable component of the Kriesi Enfold - Responsive Multi-Purpose Theme failed to properly filter and sanitize user inputs. Consequently, this allows attackers to craft malicious URLs containing harmful scripts, which, when clicked, execute the scripts in the context of the targeted user's browser.

An example of a potentially harmful URL might look like this

https://example.com/vulnerable-page?parameter=<script>alert('Hacked');</script>;

When the targeted user clicks on this URL, the script inside the URL will execute, possibly leading to a Reflected XSS attack. Although this example script simply displays a harmless alert, in a real-life scenario, attackers could use malicious scripts to steal sensitive information, hijack user sessions, or perform other nefarious actions.

You can find more detailed information about CVE-2023-38400 in the following official resources

1. CVE Details Page
2. National Vulnerability Database Entry

Exploit Details

The exploit for CVE-2023-38400 is relatively straightforward, as it relies on the attacker's ability to craft malicious URLs that include harmful scripts. Once the attacker has crafted such a URL, they can distribute it through social engineering tactics like phishing emails or social media messages. When unsuspecting users click on the link, the attacker's malicious script will execute in the users' browsers, opening the door for a wide range of potential attacks.

Mitigating CVE-2023-38400

To protect your website against CVE-2023-38400, you will need to update Kriesi Enfold - Responsive Multi-Purpose Theme to the latest version. The developers have issued a patch that addresses the vulnerability, which can be applied by updating your theme to version 5.6.5 or later. To keep your website safe from future threats, always ensure that you apply patches and updates to all installed themes and plugins as soon as they become available.

Conclusion

CVE-2023-38400 is a critical vulnerability that affects a widely used WordPress theme, Kriesi Enfold - Responsive Multi-Purpose Theme. By understanding the mechanics of this vulnerability, its exploit details, and the mitigation steps, you can effectively defend your website and its users against potential attacks. Always remain vigilant and up-to-date with the latest security information to maintain a secure web presence.

Timeline

Published on: 11/30/2023 17:15:09 UTC
Last modified on: 12/05/2023 22:08:09 UTC