Overview
The Common Vulnerabilities and Exposures system (CVE) has recently published a critical vulnerability, CVE-2025-8570, that pertains to the BeyondCart Connector plugin for WordPress. This vulnerability is of particular concern due to its high severity and potential for widespread impact, especially for businesses and websites running the vulnerable versions of the BeyondCart Connector plugin.
The CVE-2025-8570 vulnerability carries a CVSS Severity Score of 9.8, marking it as a critical threat. It enables unauthenticated attackers to exploit improper JWT secret management and authorization within the determine_current_user filter. This flaw could lead to a complete system compromise or significant data leakage, endangering both the system’s stability and the confidentiality of its data.
Vulnerability Summary
CVE ID: CVE-2025-8570
Severity: Critical (9.8 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise, data leakage
Affected Products
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Product | Affected Versions
BeyondCart Connector Plugin for WordPress | 1.4.2 to 2.1.0
How the Exploit Works
The exploit hinges on the improper management of JSON Web Tokens (JWT) and a flawed authorization process within the determine_current_user filter of the BeyondCart Connector plugin. Attackers can exploit this vulnerability by crafting valid tokens, which the system improperly verifies due to the flawed secret management. This allows the attacker to assume the identity of any user, leading to a potential full-scale system compromise or data leakage.
Conceptual Example Code
The following is a hypothetical demonstration of how an attacker might exploit this vulnerability:
POST /wp-json/beyondcart/v1/authenticate HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"username": "admin",
"jwt_secret": "Crafted_Valid_Token"
}In this example, an attacker sends a POST request to the BeyondCart authentication endpoint with a crafted valid token for the ‘admin’ user. The system, due to the vulnerability, accepts this crafted token as valid and grants the attacker the same privileges as the ‘admin’ user.
