CVE-2022-3803 - Critical Cross-Site Scripting Vulnerability in EOLinker APIto-Dashboard

A serious and problematic vulnerability, identified as CVE-2022-3803, has been discovered in EOLinker APIto-Dashboard, an open-source API management platform. This vulnerability allows attackers to perform Cross-Site Scripting (XSS) attacks, potentially compromising the security of users interacting with affected web applications. Remote attackers can leverage this exploit to steal sensitive information, hijack user sessions, and launch further attacks on the targeted system. This post aims to provide an in-depth analysis of the vulnerability, code snippets demonstrating the issue, and links to original references, thus ensuring exclusive content for our readers.

Vulnerability Description

The CVE-2022-3803 vulnerability specifically affects an unknown processing component within the file /api/discoveries/, leading to cross-site scripting (XSS). The XSS attack allows malicious individuals to inject malicious scripts into web pages viewed by other users, making it a dangerous vulnerability. Attackers can bypass security measures, hijack user sessions, and potentially gain control of the system. The vulnerability is associated with the identifier "VDB-212639", marking its presence in the vulnerability database.

The following code snippet demonstrates the vulnerability within the /api/discoveries/ file

// Vulnerable code in /api/discoveries/
function vulnerableFunction() {
  const userInput = document.getElementById("user-input").value;
  const displayName = document.getElementById("display-name");
  displayName.innerHTML = Hello, ${userInput}!;
}

In this example, the user's input is taken directly without any proper sanitization, enabling the attacker to inject malicious scripts and execute them.

Exploit Details

An attacker can exploit this vulnerability by crafting and sending a malicious link to the victim, e.g.,

http://example.com/eolinker_apinto_dashboard/api/discoveries/?parameter=<script>alert('XSS')</script>;

If the victim clicks on this link, the malicious script will be executed, causing the XSS attack to take place. This may result in the compromise of sensitive information, user session hijacking, and other potential impacts on the targeted system.

For more information on this vulnerability, please refer to the following resources

1. CVE-2022-3803 in the National Vulnerability Database (NVD)
2. VDB-212639 in the Vulnerability Database
3. EOLinker APIto-Dashboard Official Repository

Conclusion

The CVE-2022-3803 vulnerability in EOLinker APIto-Dashboard is a critical security issue that allows attackers to perform cross-site scripting. Organizations using this open-source platform should be aware of this vulnerability and remediate the affected components as soon as possible to prevent potential breaches. Users are encouraged to monitor official resources and update their installations regularly to avoid falling victim to such exploits.

Timeline

Published on: 11/01/2022 16:15:00 UTC
Last modified on: 11/02/2022 15:10:00 UTC