CVE-2025-12167 identifies a missing authorization vulnerability (CWE-862) in the Contact Form 7 AWeber Extension plugin for WordPress, specifically affecting all versions up to 0.1.42. The vulnerability exists because the AJAX endpoint 'wp_ajax_aweber_logreset' lacks proper capability checks, allowing any authenticated user with Subscriber-level privileges or higher to invoke this endpoint and reset the AWeber logs. This unauthorized action can lead to tampering with log data, potentially obscuring evidence of malicious activity or disrupting audit trails. The vulnerability does not require user interaction beyond authentication and does not affect confidentiality or availability directly but impacts data integrity. The CVSS 3.1 base score is 4.3 (medium severity), reflecting the low complexity of exploitation (low attack complexity), network attack vector, and the requirement for low privileges (authenticated users). No patches or exploits are currently documented, but the risk remains for organizations using this plugin in their WordPress environments. The plugin is commonly used to integrate AWeber email marketing services with Contact Form 7 forms, which are prevalent in many websites, including those operated by European businesses. Attackers with subscriber-level access could be internal users or compromised accounts, emphasizing the need for strict access control and monitoring.

For European organizations, this vulnerability primarily threatens the integrity of marketing and contact form data logs. Unauthorized resetting of AWeber logs can hinder incident response and forensic investigations by erasing traces of prior activities, potentially allowing malicious actors to cover their tracks. Organizations relying on accurate logging for compliance with GDPR and other data protection regulations may face increased risk of non-compliance if log tampering goes undetected. Although the vulnerability does not directly expose sensitive data or disrupt service availability, the ability to manipulate logs can facilitate further attacks or data exfiltration by masking suspicious behavior. This is particularly concerning for sectors with stringent audit requirements, such as finance, healthcare, and e-commerce. Additionally, the ease of exploitation by low-privileged users increases the risk from insider threats or compromised subscriber accounts. The overall impact is moderate but significant in environments where log integrity is critical for security and regulatory compliance.

To mitigate CVE-2025-12167, organizations should first verify if they use the Contact Form 7 AWeber Extension plugin and identify the version in use. Since no official patch is currently available, administrators should implement the following measures: 1) Restrict access to the 'wp_ajax_aweber_logreset' AJAX endpoint by adding explicit capability checks in the plugin code to ensure only trusted roles (e.g., administrators) can invoke it. 2) Limit Subscriber-level user privileges strictly and review user roles to minimize unnecessary elevated access. 3) Monitor and audit AWeber log files regularly for unexpected resets or anomalies. 4) Employ WordPress security plugins that can detect unauthorized AJAX calls or unusual user behavior. 5) Consider temporarily disabling the AWeber extension if it is not critical to operations until a patch is released. 6) Maintain robust authentication mechanisms, including multi-factor authentication, to reduce the risk of account compromise. 7) Stay informed about updates from the plugin vendor and apply patches promptly once available.