CVE-2026-24387 identifies a missing authorization vulnerability in the WP Quick Post Duplicator plugin for WordPress, developed by Arul Prasad J. This plugin facilitates duplicating posts within WordPress sites to streamline content management. The vulnerability arises from incorrectly configured access control mechanisms that fail to verify whether a user has the necessary permissions before allowing post duplication actions. As a result, unauthorized users, including unauthenticated attackers or low-privileged users, may exploit this flaw to duplicate posts without proper authorization. This can lead to unauthorized content replication, potential content spamming, or manipulation of website data. The affected versions include all releases up to and including version 2.1. No CVSS score has been assigned yet, and no public exploits have been reported. However, the vulnerability's nature suggests a significant risk to the integrity and confidentiality of website content, as unauthorized duplication could be leveraged for further attacks or content pollution. The vulnerability was published on January 22, 2026, and is tracked by Patchstack. No patches or fixes have been linked yet, indicating that users should be vigilant and apply updates promptly once available.

For European organizations, this vulnerability could lead to unauthorized duplication of website content, potentially undermining content integrity and trustworthiness. Attackers might use duplicated posts to inject malicious content, phishing pages, or spam, which could damage brand reputation and user trust. Additionally, unauthorized content duplication could lead to intellectual property issues or compliance violations, especially under GDPR if personal data is involved in duplicated posts. The impact is more pronounced for organizations relying heavily on WordPress for content management, including media companies, e-commerce platforms, and public sector websites. The vulnerability could also be exploited as a foothold for further attacks if combined with other vulnerabilities. Although no known exploits exist yet, the ease of exploitation without authentication increases the risk of opportunistic attacks, especially in environments where plugin access controls are lax.

1. Monitor the WP Quick Post Duplicator plugin's official channels for security patches and apply updates immediately upon release. 2. Restrict access to the plugin's functionality by limiting user roles that can duplicate posts, ensuring only trusted administrators or editors have such permissions. 3. Implement web application firewalls (WAF) with custom rules to detect and block unauthorized post duplication attempts. 4. Conduct regular audits of user activity logs to identify unusual duplication actions or access patterns. 5. Consider temporarily disabling or uninstalling the plugin if immediate patching is not possible, especially on high-value or sensitive websites. 6. Harden WordPress installations by enforcing least privilege principles and using security plugins that enhance access control. 7. Educate site administrators about the risks of unauthorized plugin access and encourage strong authentication mechanisms such as multi-factor authentication (MFA).