Overview
The cybersecurity landscape is riddled with potential threats and vulnerabilities, and one such vulnerability has been identified in the SMS Alert Order Notifications – WooCommerce plugin for WordPress. This vulnerability is tagged as CVE-2025-3876 and affects all versions of the plugin up to and including 3.8.1. The vulnerability pertains to Privilege Escalation due to inadequate user OTP validation, making it a potent risk for businesses and organizations utilizing the WooCommerce plugin for their WordPress websites.
The CVE-2025-3876 vulnerability is of significant concern due to the potential for system compromise or data leakage. Given that millions of e-commerce websites use the WooCommerce plugin, this vulnerability could have far-reaching implications if left unaddressed.
Vulnerability Summary
CVE ID: CVE-2025-3876
Severity: High (CVSS: 8.8)
Attack Vector: Network
Privileges Required: Low (Subscriber-level Access)
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
SMS Alert Order Notifications – WooCommerce plugin for WordPress | All versions up to and including 3.8.1
How the Exploit Works
The CVE-2025-3876 vulnerability arises from insufficient user OTP validation in the handleWpLoginCreateUserAction() function of the WooCommerce plugin for WordPress. This loophole allows an attacker, who has Subscriber-level access, to impersonate any account by simply supplying its username or email.
The attacker can then elevate their privileges to that of an administrator. This privilege escalation gives the attacker full administrative access to the WordPress website, thus paving the way for potential system compromise or data leakage.
Conceptual Example Code
Here’s a conceptual example of how this vulnerability might be exploited. This pseudocode represents an HTTP request to the vulnerable endpoint:
POST /handleWpLoginCreateUserAction() HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"username": "target-username-or-email",
"OTP": "any-OTP-value"
}In this example, an attacker with Subscriber-level access sends a POST request to the handleWpLoginCreateUserAction() function. They provide a target username or email and any OTP value, due to the insufficient OTP validation, this results in gaining the same privileges as the targeted user. If the targeted user is an administrator, the attacker now has administrative access to the website.
Mitigation Guidance
To mitigate the CVE-2025-3876 vulnerability, apply the patch provided by the vendor. 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. However, these should not replace the necessity of patching the system as soon as possible.