CVE-2025-5071 is a high-severity vulnerability affecting the tigroumeow AI Engine plugin for WordPress, specifically versions 2.8.0 through 2.8.3. The root cause is an incorrect authorization check (CWE-863) in the function 'Meow_MWAI_Labs_MCP::can_access_mcp'. This function lacks proper capability verification, allowing authenticated users with subscriber-level privileges or higher to gain unauthorized full access to the plugin's Management Control Panel (MCP). Exploiting this flaw, attackers can execute sensitive WordPress commands such as 'wp_create_user', 'wp_update_user', and 'wp_update_option', enabling privilege escalation to administrator roles. Additionally, commands like 'wp_update_post', 'wp_delete_post', 'wp_update_comment', and 'wp_delete_comment' can be abused to modify or delete site content and user comments. The vulnerability requires no user interaction beyond authentication and can be exploited remotely over the network (AV:N). The CVSS 3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity and privileges required at a low level (subscriber). No known exploits are currently reported in the wild, but the potential for damage is significant given the widespread use of WordPress and the plugin's capabilities. The absence of a patch link indicates that a fix may not yet be publicly available, increasing the urgency for mitigation.

For European organizations, this vulnerability poses a substantial risk, especially for those relying on WordPress sites with the tigroumeow AI Engine plugin installed. Successful exploitation can lead to unauthorized creation or modification of user accounts, including escalation to administrative privileges, which compromises the entire website's security posture. Attackers can manipulate or delete critical content and user-generated data, potentially disrupting business operations, damaging reputation, and violating data protection regulations such as GDPR. The ability to alter site options may also allow attackers to implant persistent backdoors or redirect traffic to malicious sites. Given the plugin's AI capabilities, there is a risk that sensitive AI-generated data or configurations could be tampered with or exfiltrated. The impact extends to e-commerce, government, media, and other sectors heavily dependent on WordPress for content management and customer engagement across Europe.

1. Immediate mitigation should include restricting subscriber-level user registrations and reviewing existing user roles to minimize exposure. 2. Implement strict monitoring and logging of user activities related to the AI Engine plugin and WordPress user management functions to detect suspicious behavior. 3. Employ Web Application Firewalls (WAF) with custom rules to block unauthorized access attempts to the MCP endpoints. 4. Disable or remove the tigroumeow AI Engine plugin if it is not essential, until a security patch is released. 5. For sites that must continue using the plugin, apply manual code audits and temporary patches to enforce capability checks on 'can_access_mcp' or restrict access to trusted IP ranges. 6. Regularly update WordPress core and plugins once the vendor releases a patch addressing this vulnerability. 7. Conduct user privilege audits to ensure least privilege principles are enforced and remove unnecessary subscriber accounts. 8. Educate site administrators about the risks and signs of compromise related to this vulnerability.