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CVE-2025-47532: Untrusted Data Deserialization Vulnerability in CoinPayments.net Payment Gateway for WooCommerce

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Overview

In this blog post, we will be discussing the newly disclosed cybersecurity vulnerability identified as CVE-2025-47532. This vulnerability, which has been detected in the CoinPayments.net Payment Gateway for WooCommerce, is a Deserialization of Untrusted Data vulnerability. It affects a wide range of WooCommerce online stores that have integrated the CoinPayments.net Payment Gateway. The severity of this vulnerability is significant due to the potential for system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-47532
Severity: Critical (9.8 CVSS Severity Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

CoinPayments.net Payment Gateway for WooCommerce | n/a through 1.0.17

How the Exploit Works

The CVE-2025-47532 vulnerability exploits the deserialization process in the CoinPayments.net Payment Gateway for WooCommerce. Deserialization is the process of converting data from a format suitable for storage or transmission back into an object. When this process does not properly verify or sanitize the data, it can be exploited by an attacker to inject malicious objects, leading to what’s known as an Object Injection vulnerability. In this case, a successful exploit could result in a range of impacts, from unauthorized access to sensitive data to a complete system compromise.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. The attacker sends a POST request to the payment gateway with a malicious payload that exploits the deserialization vulnerability:

POST /payment_gateway/process HTTP/1.1
Host: targetstore.com
Content-Type: application/json
{ "malicious_payload": "..." }

In this payload, the attacker would include malicious code crafted to exploit the insecure deserialization. When processed by the server, this could allow the attacker to execute arbitrary code, leading to potential system compromise or data leakage.

Recommended Mitigation Measures

Users of the affected versions of CoinPayments.net Payment Gateway for WooCommerce are strongly advised to apply the vendor patch as soon as possible. In the interim, or if applying the patch is not immediately feasible, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can offer temporary mitigation against potential attacks. However, these should not be considered long-term solutions, as they do not address the underlying vulnerability.

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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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