Overview
CVE-2023-4703 is a critical vulnerability present in the All in One B2B for WooCommerce WordPress plugin. This vulnerability allows an unauthenticated attacker to update the details of any user, including admin users, leading to privilege escalation. This loophole exposes WordPress websites using this plugin to potential system compromise and data leakage.
Vulnerability Summary
CVE ID: CVE-2023-4703
Severity: High (CVSS: 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Privilege escalation, potential system compromise, and data leakage
Affected Products
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Product | Affected Versions
All in One B2B for WooCommerce WordPress plugin | Up to 1.0.3
How the Exploit Works
The exploit works by exploiting the improper validation of parameters during the updating of user details in the All in One B2B for WooCommerce WordPress plugin. An attacker can send a malicious request to the server, modifying the details of any user. If the attacker changes the password of an admin user, they can escalate their privileges, gaining full control over the WordPress site.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited. This is a hypothetical HTTP POST request:
POST /update_user_details HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"userID": "admin",
"userDetails": {
"password": "new_password"
}
}In this example, the attacker is updating the password of the admin user to “new_password”, effectively gaining admin privileges on the target WordPress site.
Mitigation Guidance
To mitigate the impact of this vulnerability, users are urged to apply the vendor’s patch as soon as it becomes available. In the meantime, a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can be used as temporary mitigation. Ensure these systems are configured properly to detect and block such malicious requests.
