CVE-2025-62865 identifies a missing authorization vulnerability in the Evan Herman Post Cloner plugin, versions up to and including 1.0.0. The vulnerability arises due to incorrectly configured access control security levels, allowing unauthenticated remote attackers to perform actions that should require authorization. Specifically, the flaw permits exploitation of the post cloning functionality without verifying the attacker's permissions, potentially enabling unauthorized duplication or manipulation of posts within the affected system. The CVSS 3.1 base score is 5.3, reflecting a network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction (UI:N). The impact is limited to integrity (I:L), with no confidentiality (C:N) or availability (A:N) impact. The vulnerability is publicly disclosed but currently lacks known exploits in the wild and official patches. The absence of patches necessitates immediate attention to access control configurations and monitoring. This vulnerability primarily affects websites or platforms using the Post Cloner plugin, which is commonly integrated into content management systems for duplicating posts or pages. Attackers exploiting this flaw could manipulate content integrity, potentially leading to misinformation, unauthorized content publication, or other integrity-related issues.

For European organizations, the primary impact of CVE-2025-62865 is the potential unauthorized modification or duplication of content within their web platforms using the Post Cloner plugin. This can lead to integrity breaches, such as the publication of unauthorized or misleading content, which could damage organizational reputation and trust. Although confidentiality and availability are not directly affected, the integrity compromise could have downstream effects, including regulatory compliance issues, especially under GDPR if manipulated content leads to misinformation or data inaccuracies. Organizations relying heavily on content management systems with this plugin are at risk of remote exploitation without authentication or user interaction, increasing the attack surface. The lack of known exploits currently reduces immediate risk but does not eliminate the threat, particularly as attackers may develop exploits once the vulnerability becomes widely known. The impact is more pronounced for sectors where content integrity is critical, such as media, government, education, and e-commerce platforms operating in Europe.

To mitigate CVE-2025-62865, European organizations should immediately audit and restrict access control configurations related to the Post Cloner plugin, ensuring that only authorized users can perform cloning operations. Implementing web application firewalls (WAFs) with rules to detect and block unauthorized post cloning requests can provide an additional layer of defense. Monitoring logs for unusual cloning activities or spikes in post duplication can help detect exploitation attempts early. Until an official patch is released, consider disabling or removing the Post Cloner plugin if it is not essential. For environments where the plugin is critical, isolate the affected systems and apply strict network segmentation to limit exposure. Regularly update all CMS components and subscribe to vendor advisories for timely patch deployment once available. Additionally, educate content administrators about the risks and signs of unauthorized content changes to facilitate rapid response.