CVE-2025-10915 is a vulnerability classified under CWE-862 (Missing Authorization) affecting the Dreamer Blog WordPress theme versions through 1.2. The vulnerability arises because the theme does not perform proper capability checks before allowing installation actions, which means that unauthorized users can trigger arbitrary installations. This could include installing plugins, themes, or other components without the site administrator's consent. The lack of authorization checks means that an attacker does not need to authenticate or have elevated privileges to exploit this flaw. Although no public exploits have been reported yet, the vulnerability could be leveraged to inject malicious code, backdoors, or other harmful payloads, leading to site compromise, data breaches, or defacement. The vulnerability was reserved in September 2025 and published in January 2026, but no CVSS score has been assigned. The affected product is a WordPress theme, which is widely used in many European organizations for content management and blogging purposes. The absence of patch links suggests that no official fix is currently available, increasing the urgency for mitigation through alternative means such as access restrictions or disabling vulnerable functionality.

For European organizations, exploitation of this vulnerability could lead to unauthorized installation of malicious plugins or code, resulting in potential data breaches, defacement, or complete site takeover. This can compromise the confidentiality and integrity of sensitive information managed via WordPress sites, disrupt availability through malicious payloads or denial-of-service conditions, and damage organizational reputation. Given the widespread use of WordPress in Europe, especially among SMEs and public sector entities, the threat could have broad implications. Attackers could leverage this vulnerability to establish persistent access, pivot to internal networks, or conduct further attacks. The lack of authentication requirement lowers the barrier for exploitation, increasing the risk profile for organizations that have not restricted access to installation features or monitored for unauthorized changes.

Organizations should immediately audit their WordPress installations to identify the use of the Dreamer Blog theme version 1.2 or earlier. Until an official patch is released, administrators should restrict access to installation and theme management features to trusted users only, ideally limiting these capabilities to administrators. Implementing Web Application Firewalls (WAF) with rules to detect and block unauthorized installation attempts can provide additional protection. Regularly monitor WordPress logs for unusual installation activities or unauthorized changes. Consider disabling theme and plugin installation features if not required. Keep WordPress core and all plugins/themes updated to the latest versions to reduce exposure to known vulnerabilities. Engage with the theme developer or community to track patch releases and apply them promptly once available. Additionally, enforce strong authentication and role-based access controls to minimize the risk of exploitation.