CVE-2025-3914 is a high-severity vulnerability affecting the Aeropage Sync for Airtable plugin for WordPress, specifically all versions up to and including 3.2.0. The vulnerability arises from the lack of proper file type validation in the 'aeropage_media_downloader' function, which allows authenticated users with Subscriber-level access or higher to upload arbitrary files to the server hosting the WordPress site. This unrestricted file upload vulnerability (CWE-434) can be exploited to upload malicious files, potentially leading to remote code execution (RCE) on the affected server. The vulnerability is network exploitable (AV:N), requires low attack complexity (AC:L), and only requires privileges equivalent to a Subscriber role (PR:L), without any user interaction (UI:N). The scope is unchanged (S:U), but the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H), as an attacker could execute arbitrary code, compromise sensitive data, and disrupt service. Although no public exploits are currently known in the wild, the ease of exploitation and the severity of impact make this a critical risk for sites using this plugin. The plugin is used to synchronize data between WordPress and Airtable, which may be popular among organizations leveraging these platforms for content and data management. The vulnerability’s exploitation could lead to full server compromise, data breaches, defacement, or use of the server as a pivot point for further attacks within the network.

For European organizations, this vulnerability poses a significant risk, especially for those using WordPress sites integrated with Airtable via the Aeropage Sync plugin. Successful exploitation could lead to unauthorized access to sensitive corporate or customer data, disruption of web services, and potential lateral movement within internal networks. Given the high impact on confidentiality, integrity, and availability, organizations could face regulatory consequences under GDPR if personal data is compromised. Additionally, the ability for low-privilege users to exploit this vulnerability increases the threat from insider threats or compromised accounts. The potential for remote code execution means attackers could deploy malware, ransomware, or establish persistent backdoors, amplifying operational and reputational damage. This is particularly critical for sectors with high reliance on web presence and data integration, such as finance, healthcare, and government services in Europe.

1. Immediate mitigation involves disabling or uninstalling the Aeropage Sync for Airtable plugin until a patched version is released. 2. Restrict WordPress user roles to the minimum necessary privileges, especially limiting Subscriber-level users from uploading files or accessing plugin functionalities. 3. Implement web application firewalls (WAFs) with rules to detect and block suspicious file upload attempts targeting the vulnerable function. 4. Conduct thorough auditing and monitoring of file uploads and server logs to detect anomalous activity indicative of exploitation attempts. 5. Employ file integrity monitoring to detect unauthorized changes or uploads on the server. 6. Harden the server environment by disabling execution permissions in upload directories and isolating WordPress processes with least privilege principles. 7. Once available, promptly apply vendor patches or updates addressing this vulnerability. 8. Educate administrators and users about the risks of granting unnecessary privileges and the importance of strong authentication controls. 9. Consider implementing multi-factor authentication (MFA) to reduce the risk of compromised accounts being used to exploit this vulnerability.