CVE-2024-13450 is a Server-Side Request Forgery (SSRF) vulnerability classified under CWE-918, affecting the 'Contact Form by Bit Form' WordPress plugin developed by bitpressadmin. This plugin provides multi-step forms, calculation forms, payment forms, and custom contact form building capabilities. The vulnerability exists in all versions up to and including 2.17.4 and is triggered via the Webhooks integration feature. An authenticated attacker with Administrator privileges or higher can exploit this flaw to make arbitrary HTTP requests originating from the web server hosting the plugin. This can be leveraged to interact with internal services that are otherwise inaccessible externally, potentially leading to unauthorized data access or modification. The vulnerability also extends to WordPress Multisite setups, increasing the scope of impact in such environments. The CVSS v3.1 base score is 3.8, reflecting low severity due to the requirement for high privileges and no user interaction needed. No public exploits have been reported yet, but the risk remains for insider threats or compromised admin accounts. The lack of available patches at the time of reporting necessitates immediate attention from administrators to mitigate potential risks.

The primary impact of CVE-2024-13450 is the potential for an attacker with Administrator-level access to perform SSRF attacks, enabling them to send crafted requests from the vulnerable server to internal or external systems. This can lead to unauthorized access to internal services, data leakage, or manipulation of internal APIs that are not exposed externally. While the vulnerability does not directly allow remote code execution or denial of service, it can be a stepping stone for further attacks within the internal network. In multisite WordPress environments, the impact is amplified as multiple sites could be affected simultaneously. Organizations relying on this plugin for critical contact forms or payment processing may face confidentiality and integrity risks if the vulnerability is exploited. However, the requirement for high privilege limits the threat to scenarios where an attacker has already gained significant access, such as compromised administrator credentials or insider threats.

1. Immediately update the 'Contact Form by Bit Form' plugin to a version that addresses this vulnerability once available. Monitor the vendor's announcements for patches. 2. Restrict administrator access strictly to trusted personnel and enforce strong authentication mechanisms such as multi-factor authentication (MFA) to reduce the risk of credential compromise. 3. Disable or limit the use of the Webhooks integration feature if it is not essential, as this is the attack vector. 4. Implement network segmentation and firewall rules to restrict the web server's ability to make outbound requests to internal services that are not required for normal operation. 5. Monitor logs for unusual outbound HTTP requests originating from the web server, which may indicate exploitation attempts. 6. In multisite environments, review and harden site and network administrator roles and permissions to minimize exposure. 7. Conduct regular security audits and vulnerability scans on WordPress installations to detect outdated plugins and potential misconfigurations.