CVE-2025-27359 is a Cross-Site Request Forgery (CSRF) vulnerability identified in the Seerox WP Media File Type Manager WordPress plugin, affecting versions up to 2.3.0. CSRF vulnerabilities occur when an attacker tricks an authenticated user into submitting a forged request to a web application, causing the application to perform unwanted actions on behalf of the user without their consent. In this case, the vulnerability allows an attacker to exploit the lack of proper CSRF protections in the WP Media File Type Manager plugin, potentially enabling unauthorized modification of plugin settings or media file type configurations. The vulnerability is characterized by the CWE-352 classification, indicating insufficient verification of the origin of requests. According to the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N), the attack can be executed remotely over the network without requiring privileges or authentication, but it requires user interaction (such as clicking a malicious link). The impact is limited to integrity, with no confidentiality or availability impact. No known exploits are currently reported in the wild, and no patches have been linked yet. This vulnerability primarily affects WordPress sites using the vulnerable plugin, which is commonly used to manage allowed media file types for uploads.

For European organizations, the impact of this vulnerability depends on the extent of WordPress usage and specifically the deployment of the WP Media File Type Manager plugin. Organizations using this plugin could face unauthorized changes to media file type settings, potentially allowing attackers to upload malicious files if the plugin controls file type restrictions. This could lead to further compromise of the website or hosting environment, data integrity issues, or defacement. While the vulnerability does not directly expose sensitive data or cause denial of service, the integrity impact can facilitate subsequent attacks such as malware distribution or privilege escalation. Given the widespread use of WordPress in Europe across various sectors including government, education, and commerce, organizations with less mature security practices or lacking timely patch management are at higher risk. The requirement for user interaction means phishing or social engineering could be used to trigger the exploit, increasing risk in environments with less user awareness training.

To mitigate this vulnerability, European organizations should first identify all WordPress instances using the WP Media File Type Manager plugin and verify the plugin version. Although no patch links are currently available, monitoring the vendor’s site or trusted security advisories for updates is critical. In the interim, organizations should implement compensating controls such as disabling or restricting the plugin if feasible, or limiting administrative access to trusted users only. Employing Web Application Firewalls (WAFs) with rules to detect and block CSRF attack patterns targeting this plugin can reduce risk. Additionally, enforcing strict Content Security Policies (CSP) and SameSite cookie attributes can help mitigate CSRF risks. User training to recognize phishing attempts and suspicious links is also important since user interaction is required for exploitation. Regular security audits and monitoring for unusual changes in media file type settings can help detect exploitation attempts early.