CVE-2025-66126 identifies a vulnerability in the Fix Media Library plugin developed by wowpress.host, which is used to manage media libraries in WordPress environments. The issue involves the insertion of sensitive information into data sent by the plugin, potentially exposing embedded sensitive data to unauthorized recipients. This vulnerability affects all versions up to and including 2.0. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) indicates that the attack can be performed remotely over the network without any privileges or user interaction, with low attack complexity. While confidentiality is not directly impacted, the integrity of the data sent is compromised, as unauthorized modification or insertion of sensitive information can occur. This could lead to data leakage or manipulation, undermining trust in the media content management process. No patches or known exploits are currently documented, but the vulnerability is publicly disclosed and should be addressed promptly. The plugin’s widespread use in WordPress sites that handle media assets makes this vulnerability relevant for organizations relying on such infrastructure.

For European organizations, the impact centers on potential unauthorized disclosure or manipulation of sensitive embedded data within media content managed by the Fix Media Library plugin. This could lead to exposure of confidential information, data integrity issues, and reputational damage, especially for sectors handling sensitive media such as media companies, educational institutions, and government agencies. The vulnerability’s remote exploitability without authentication increases the risk of automated or targeted attacks. Given the extensive use of WordPress across Europe, organizations using this plugin may face increased risk of data leakage or tampering, which could also have regulatory implications under GDPR if personal data is involved. The medium severity reflects moderate risk but should not be underestimated due to the potential for data integrity compromise and indirect confidentiality impacts.

1. Immediately audit all WordPress installations to identify the presence of the Fix Media Library plugin and its version. 2. Disable or remove the plugin until an official patch or update is released by wowpress.host. 3. Monitor outgoing data streams from affected systems for signs of sensitive information insertion or leakage. 4. Implement network-level controls such as web application firewalls (WAFs) to detect and block suspicious data transmissions related to the plugin. 5. Restrict access to media library management interfaces to trusted administrators only, minimizing exposure. 6. Engage with wowpress.host or trusted security vendors for updates or patches addressing this vulnerability. 7. Conduct regular security assessments and penetration testing focused on media management components. 8. Educate content managers and administrators about the risks and signs of data manipulation within media content.