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CVE-2025-52289: Broken Access Control Vulnerability in MagnusBilling v7.8.5.3

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Overview

The Common Vulnerabilities and Exposures (CVE) system has recently identified a new vulnerability, CVE-2025-52289, within the MagnusBilling software version 7.8.5.3. This vulnerability is a significant cybersecurity concern, as it allows newly registered users to escalate their privileges without requiring administrator approval. This security flaw primarily impacts businesses and organizations that utilize MagnusBilling for their telecommunication needs. The implications of this vulnerability are severe, with potential system compromise or data leakage being the most notable risks.

Vulnerability Summary

CVE ID: CVE-2025-52289
Severity: High (8.0 CVSS score)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: System compromise or data leakage

Affected Products

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Product | Affected Versions

MagnusBilling | v7.8.5.3

How the Exploit Works

The exploit works by taking advantage of the broken access control in MagnusBilling v7.8.5.3. The vulnerability allows a newly registered user to send a crafted request to /mbilling/index.php/user/save. This request changes the status of the user’s account from “pending” to “active” without requiring admin approval. As a result, this user gains escalated privileges, potentially leading to unauthorized information access, system compromise, or data leakage.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited.

POST /mbilling/index.php/user/save HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"userId": "newUser",
"status": "active"
}

In this example, a new user, ‘newUser’, crafts a JSON payload to set their status to ‘active’, bypassing admin approval and escalating their account privileges.

Mitigation

To mitigate this vulnerability, MagnusBilling users are advised to apply the vendor’s patch as soon as it is available. In the meantime, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These prevention techniques monitor network traffic and detect unusual or potentially harmful activities. Organizations should also consider employing a least privilege policy, limiting user permissions to the bare minimum required for their role, thus reducing the potential impact of such vulnerabilities.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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