CVE-2025-62865 identifies a Missing Authorization vulnerability in the Evan Herman Post Cloner plugin, which is used to duplicate posts within content management systems, likely WordPress. The vulnerability stems from improperly configured access control mechanisms, allowing unauthorized users to exploit the plugin's post cloning functionality without proper permission checks. This means that an attacker could potentially clone posts without authentication or with insufficient privilege, leading to unauthorized content duplication or manipulation. The affected versions include all versions up to and including 1.0.0, with no specific version exclusions noted. The vulnerability was reserved in late October 2025 and published in early December 2025, but no CVSS score or official patch has been released yet. No known exploits have been detected in the wild, but the nature of the vulnerability suggests a moderate to high risk if exploited, as it compromises access control—a fundamental security principle. The lack of authentication or authorization checks can lead to confidentiality breaches (unauthorized access to content), integrity issues (unauthorized content cloning or modification), and potentially availability concerns if the cloning process is abused to overload systems. The vulnerability does not require user interaction, increasing the ease of exploitation. Given the plugin’s role in content management, the scope of affected systems includes websites using this plugin for post cloning, predominantly WordPress sites. The absence of patches necessitates immediate mitigation through access restrictions and monitoring.

For European organizations, the impact of CVE-2025-62865 could be significant, particularly for those relying heavily on WordPress and the Post Cloner plugin for content management. Unauthorized cloning of posts can lead to intellectual property theft, content duplication that harms SEO rankings, and potential misinformation if cloned content is altered maliciously. Confidentiality is at risk as unauthorized users may access or duplicate sensitive content. Integrity is compromised through unauthorized content manipulation. While availability impact is less direct, abuse of the cloning functionality could lead to resource exhaustion or service degradation. Organizations in sectors such as media, publishing, education, and e-commerce, which frequently use content management systems, may face reputational damage and operational disruption. The lack of a patch increases exposure time, and the absence of known exploits does not eliminate the risk of future attacks. Compliance with GDPR and other data protection regulations may be affected if unauthorized data access occurs. Therefore, European entities must treat this vulnerability seriously to prevent potential data breaches and operational impacts.

1. Immediately restrict access to the Post Cloner plugin interface by limiting it to trusted administrators only, using IP whitelisting or VPN access controls. 2. Disable or uninstall the Post Cloner plugin if it is not essential to reduce the attack surface. 3. Monitor web server and application logs for unusual cloning activity or unauthorized access attempts related to the plugin. 4. Implement Web Application Firewall (WAF) rules to detect and block suspicious requests targeting the plugin’s endpoints. 5. Regularly audit user permissions and roles within the content management system to ensure least privilege principles are enforced. 6. Stay alert for official patches or updates from Evan Herman and apply them promptly once released. 7. Conduct internal penetration testing focusing on access control weaknesses in plugins and extensions. 8. Educate content management teams about the risks of unauthorized plugin usage and the importance of timely updates.