CVE-2023-43874 identifies multiple Cross Site Scripting (XSS) vulnerabilities in e017 CMS v.2.3.2 that, when exploited by a local attacker, allow the execution of arbitrary code. This security flaw is particularly troublesome as it enables an attacker to compromise web application users and gain unauthorized access to sensitive information.
Local attackers can achieve this by inserting a crafted script into the Copyright and Author fields located in the Meta & Custom Tags Menu. Consequently, any unsuspecting user who interacts with these fields could unknowingly activate the malevolent code.
This article aims to detail the exploit, identify potentially impacted systems, and provide remediation suggestions to secure your e017 CMS v.2.3.2 application.
Exploit Details
The vulnerabilities exist in the Copyright and Author fields within the Meta & Custom Tags Menu. When an attacker introduces a specially designed script into these fields, it can allow for code execution on the victim's browser, potentially leading to sensitive data exposure or unauthorized system access.
Proof of Concept (PoC) code snippet
<script>alert("XSS Vulnerability Exploited")</script>
By inputting the code snippet above into either the Copyright or Author fields within the Meta & Custom Tags Menu, an attacker can trigger a JavaScript alert saying "XSS Vulnerability Exploited." Although this example is relatively benign, it effectively demonstrates the exploitation potential of these XSS vulnerabilities.
Affected Versions
The e017 CMS v.2.3.2 is the primary version affected by this vulnerability. It is highly recommended that users of this version evaluate their systems and implement the necessary remediation solutions as soon as possible.
Original References
The Common Vulnerabilities and Exposures (CVE) database has assigned the identifier CVE-2023-43874 to this vulnerability, with more information available at: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-43874
For information on the affected e017 CMS, visit their website at: http://e017.org/
Remediation Recommendations
To mitigate the risk associated with this vulnerability, consider implementing the following measures:
1. Update your e017 CMS to the latest version: Although the developers have not yet released a fix for the vulnerability, you should keep your CMS updated to the latest version and apply any security patches as they are released.
2. Validate and sanitize user inputs: It's essential to ensure that your web application adequately validates and sanitizes all user input received through form fields and other interactive elements. This can prevent attackers from injecting malicious code that takes advantage of the XSS vulnerabilities.
3. Content Security Policy (CSP): Implement a robust Content Security Policy for your web application to restrict the types of content that can be executed by a user's browser. This will limit the potential avenues of attack for exploiting XSS vulnerabilities.
4. Educate users: Make sure your application's users are aware of potential security risks and the best practices for staying safe online. Encourage users to report any suspicious activity or possible vulnerabilities promptly.
Conclusion
CVE-2023-43874 highlights the necessity of thoroughly auditing and addressing potential XSS vulnerabilities within your web applications. By taking the appropriate precautions and implementing the recommended remediation strategies, you can minimize the risk associated with these security flaws.
It's essential for administrators and developers alike to stay informed about the latest cybersecurity threats to ensure their systems and applications remain protected. So, be sure to keep up-to-date on the latest security advisories and apply the necessary patches and updates as they become available.
Timeline
Published on: 09/28/2023 14:15:25 UTC
Last modified on: 09/29/2023 19:04:52 UTC