CVE-2025-62894 identifies a stored Cross-site Scripting (XSS) vulnerability in the magicoders ACF Recent Posts Widget, a WordPress plugin used to display recent posts. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, allowing malicious scripts to be stored and later executed in the context of users visiting the affected site. This stored XSS can be triggered when a low-privileged user with some access rights submits crafted input that is not properly sanitized or encoded before being rendered. The vulnerability affects all versions up to and including 5.9.3. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N) indicates network attack vector, low attack complexity, requiring low privileges and user interaction, with a scope change and partial confidentiality and integrity impacts but no availability impact. Although no known exploits are currently reported in the wild, the vulnerability poses a risk of session hijacking, defacement, or unauthorized actions performed on behalf of legitimate users. The plugin is commonly used in WordPress environments, which are prevalent across many European organizations’ websites. The lack of a patch link suggests that a fix may not yet be publicly available, emphasizing the need for vigilance and interim mitigations.

For European organizations, this vulnerability can lead to unauthorized script execution in the browsers of site visitors or administrators, potentially resulting in theft of session cookies, defacement, or manipulation of displayed content. This can damage organizational reputation, lead to data leakage, or facilitate further attacks such as privilege escalation or phishing. Public-facing websites using the affected plugin are particularly vulnerable, especially if they allow user-generated content or have multiple users with editing privileges. The partial compromise of confidentiality and integrity can affect customer trust and compliance with data protection regulations such as GDPR. Although availability is not directly impacted, indirect effects such as site blacklisting or loss of user trust can have business consequences. The medium severity rating reflects these moderate but significant risks.

Organizations should immediately inventory their WordPress installations to identify the use of the magicoders ACF Recent Posts Widget plugin and its version. Until an official patch is released, administrators should consider disabling or removing the plugin if feasible. Implement strict input validation and output encoding on all user inputs related to the widget to prevent malicious script injection. Employ Web Application Firewalls (WAFs) with rules targeting XSS payloads to provide an additional layer of defense. Limit user privileges to the minimum necessary, especially for users who can submit or edit content displayed by the widget. Monitor logs and user activities for suspicious behavior indicative of exploitation attempts. Educate site administrators and users about the risks of XSS and safe browsing practices. Once a patch is available, apply it promptly and verify the remediation through testing. Regularly update all WordPress plugins and core installations to reduce exposure to similar vulnerabilities.