Overview
This blog post will focus on an important and serious cybersecurity vulnerability, CVE-2025-49388, which involves the incorrect privilege assignment in the Miraculous Core Plugin. This vulnerability can potentially lead to a system compromise or data leakage when exploited. The Miraculous Core Plugin, which is affected from all versions up to 2.0.7, is widely used, and this makes the vulnerability a serious concern to a large number of users. It’s crucial for users and administrators who rely on this plugin to understand the severity of this vulnerability, how it can be exploited, and the necessary steps to mitigate it.
Vulnerability Summary
CVE ID: CVE-2025-49388
Severity: Critical, CVSS Score 9.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
Miraculous Core Plugin | All versions up to 2.0.7
How the Exploit Works
The vulnerability is caused by an incorrect privilege assignment in the Miraculous Core Plugin. This allows a malicious user to escalate their privileges, gaining access to functionality and data that should be restricted. The attacker can exploit this vulnerability by sending specially crafted network requests to the affected system, manipulating the system into granting higher-level privileges than intended. This elevated access can then be used to compromise the system or leak sensitive data.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited, using a malicious HTTP request:
POST /miraculous-core-plugin/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "privilege_override": "admin" }In this example, the attacker sends a POST request to the endpoint of the Miraculous Core Plugin. They include a JSON payload with a `privilege_override` parameter set to `admin`. If the system is vulnerable, it may incorrectly assign the attacker admin-level privileges based on this request.
Mitigation Guidance
Users are strongly advised to apply the vendor patch as soon as possible to fix this vulnerability. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These systems can detect and block attempts to exploit this vulnerability. However, these are only temporary measures and the vendor patch should be applied to fully address the issue.
