CVE-2025-62944 identifies a missing authorization vulnerability in the MSTW CSV EXPORTER plugin, a tool used for exporting CSV data, developed by Mark O'Donnell. The vulnerability stems from improperly configured access control mechanisms that fail to verify whether a user has the necessary permissions before allowing CSV export operations. This flaw affects all versions up to and including 1.4, with no specific version exclusions noted. The absence of authorization checks means that any authenticated or potentially unauthenticated user (depending on the plugin's deployment context) could exploit this weakness to export data that should be restricted. This could lead to unauthorized data disclosure, violating confidentiality principles. The vulnerability was reserved and published in late October 2025, but no CVSS score or patch has been provided yet, and there are no known exploits in the wild. The plugin is commonly used in WordPress environments, which are prevalent in many European organizations for content management and data handling. The lack of authorization controls in such a plugin can be particularly damaging if sensitive or regulated data is involved. The vulnerability does not require user interaction beyond accessing the export functionality, and exploitation ease depends on the plugin's deployment and access restrictions in place. Given the nature of the vulnerability, it primarily impacts confidentiality and integrity, with potential secondary impacts on availability if exploitation leads to further compromise. The absence of a patch necessitates immediate mitigation steps to prevent unauthorized data exports.

For European organizations, especially those relying on WordPress and the MSTW CSV EXPORTER plugin for data export tasks, this vulnerability poses a significant risk of unauthorized data disclosure. Sensitive information could be extracted by unauthorized users, leading to breaches of data protection regulations such as GDPR. This could result in legal penalties, reputational damage, and loss of customer trust. Organizations in sectors like finance, healthcare, education, and government, where data sensitivity is high, are particularly vulnerable. The ease of exploitation due to missing authorization controls increases the likelihood of insider threats or external attackers leveraging compromised accounts to access data exports. Additionally, unauthorized data exports could facilitate further attacks, such as social engineering or targeted phishing campaigns. The lack of an official patch increases the window of exposure, making timely mitigation critical. The impact extends beyond confidentiality to potential integrity issues if attackers manipulate exported data or use the vulnerability as a foothold for broader system compromise.

1. Immediately restrict access to the MSTW CSV EXPORTER plugin's export functionality by limiting it to trusted administrators or specific user roles through WordPress role management or custom access control plugins. 2. Implement strict role-based access control (RBAC) policies ensuring only authorized personnel can perform data exports. 3. Monitor and audit export logs regularly to detect any unusual or unauthorized export activities. 4. If possible, disable the MSTW CSV EXPORTER plugin temporarily until an official patch or update is released by the vendor. 5. Employ web application firewalls (WAF) with custom rules to detect and block unauthorized export attempts targeting the plugin endpoints. 6. Review and harden WordPress security configurations, including authentication mechanisms and session management, to reduce the risk of account compromise. 7. Stay informed about vendor updates and apply patches promptly once available. 8. Conduct internal security awareness training to alert users about the risks of unauthorized data exports and encourage reporting of suspicious activities.