CVE-2026-22458 identifies a missing authorization vulnerability in Mikado-Themes Wanderland, a WordPress theme product, affecting versions up to and including 1.5. The vulnerability arises from incorrectly configured access control security levels, which fail to properly restrict access to certain resources or functionalities within the theme. This misconfiguration allows remote attackers to access data or functionality that should be protected, without requiring any authentication or user interaction. The CVSS v3.1 base score of 5.3 reflects a medium severity, with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), limited confidentiality impact (C:L), and no impact on integrity (I:N) or availability (A:N). The vulnerability does not currently have known exploits in the wild, and no official patches have been released at the time of publication. The issue is significant because WordPress themes are widely used to customize websites, and improper access control can expose sensitive data or administrative functions. Organizations using the Wanderland theme should be aware that this vulnerability could be exploited remotely by unauthenticated attackers to gain unauthorized access to restricted content or settings, potentially leading to data leakage or further exploitation. The lack of authentication requirement and low complexity of exploitation increase the risk profile, although the impact is limited to confidentiality. The vulnerability was reserved and published in January 2026 by Patchstack, a known security vendor specializing in WordPress ecosystem vulnerabilities.

For European organizations, the primary impact of CVE-2026-22458 is the potential unauthorized disclosure of sensitive information hosted on websites using the Mikado-Themes Wanderland theme. This could include customer data, internal content, or configuration details that may aid further attacks. Although the vulnerability does not affect integrity or availability, the confidentiality breach could lead to reputational damage, regulatory non-compliance (e.g., GDPR violations), and loss of customer trust. Organizations in sectors such as e-commerce, media, and public services that rely on WordPress themes for their web presence are particularly at risk. The fact that exploitation requires no authentication and no user interaction means attackers can scan and exploit vulnerable sites at scale, increasing the threat surface. However, the absence of known exploits in the wild and the medium severity score suggest that immediate catastrophic impact is unlikely but vigilance is necessary. Failure to address this vulnerability could also facilitate chained attacks if combined with other vulnerabilities.

To mitigate CVE-2026-22458, European organizations should first identify all instances of the Mikado-Themes Wanderland theme in their web environments and verify the version in use. Since no official patches are currently available, administrators should manually review and tighten access control configurations within the theme, ensuring that sensitive resources and administrative functions are properly restricted to authorized users only. Implementing web application firewalls (WAFs) with rules to detect and block unauthorized access attempts targeting known vulnerable endpoints can provide interim protection. Regularly monitoring web server logs for unusual access patterns or repeated unauthorized requests is recommended. Organizations should also subscribe to Mikado-Themes security advisories and Patchstack updates to promptly apply patches once released. Additionally, applying the principle of least privilege in user roles and limiting public exposure of sensitive content can reduce risk. Conducting security audits and penetration testing focused on access control mechanisms in WordPress themes will help identify and remediate similar issues proactively.