Overview
We’re diving into a critical cybersecurity issue today that poses a significant risk to the users of RomanCode MapSVG. This blog post is about the security vulnerability CVE-2025-47559, which has a high severity score of 9.9 on the CVSS scale. The vulnerability allows threat actors to upload a web shell to a web server unrestrictedly. This poses a substantial threat to the system’s integrity and confidentiality, potentially leading to system compromise or data leakage.
Anyone using versions of RomanCode MapSVG up to 8.5.32 is affected by this vulnerability. It’s an issue of high importance due to the potential consequences of a successful exploit, which could include unauthorized access to sensitive data, disruption of service, or even complete control over the affected server.
Vulnerability Summary
CVE ID: CVE-2025-47559
Severity: Critical (9.9)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage
Affected Products
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Product | Affected Versions
RomanCode MapSVG | Up to 8.5.32
How the Exploit Works
The vulnerability is rooted in the unrestricted file upload functionality of RomanCode MapSVG. An attacker can exploit this flaw by uploading a malicious web shell to the server. A web shell is a script that allows remote administration of the machine. Once uploaded, the attacker can execute arbitrary commands on the server, essentially gaining the same privileges as the server itself. This could lead to unauthorized access to data, disruption of the service, or even total system compromise.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited. This pseudocode represents a malicious HTTP POST request to upload a web shell:
POST /upload HTTP/1.1
Host: vulnerable-server.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="file"; filename="webshell.php"
Content-Type: application/x-php
<?php echo shell_exec($_GET['cmd']); ?>
------WebKitFormBoundary7MA4YWxkTrZu0gW--In this example, we’re uploading a PHP web shell. Once uploaded, the attacker could execute commands by simply accessing the uploaded file via a web browser and passing commands through the ‘cmd’ GET parameter.
Please note that this is a conceptual example and should not be used for malicious activities. The purpose of this information is to create awareness of the vulnerability and to encourage prompt patching or mitigation.