CVE-2025-7822 is a vulnerability identified in the WP Wallcreeper plugin for WordPress, developed by alexalouit. The issue stems from a missing authorization check (CWE-862) on the admin_notices hook, which is used by the plugin to manage certain administrative notifications and settings. Specifically, this flaw allows authenticated users with Subscriber-level access or higher to modify plugin settings related to caching without proper capability verification. Since the vulnerability affects all versions up to and including 1.6.1, any WordPress site running this plugin version is potentially exposed. The vulnerability does not require user interaction beyond authentication, and the attacker must have at least Subscriber privileges, which are commonly granted to registered users on many WordPress sites. Exploitation allows unauthorized modification of caching settings, which could degrade site performance or interfere with content delivery, potentially impacting the integrity of site operations. The CVSS v3.1 score is 4.3 (medium severity), reflecting the network attack vector, low attack complexity, and the requirement for privileges but no user interaction. No known exploits are currently reported in the wild, and no patches have been linked yet, indicating that mitigation may require manual intervention or plugin updates once available.

For European organizations, this vulnerability poses a moderate risk, particularly for those relying on WordPress sites with the WP Wallcreeper plugin installed. Unauthorized modification of caching settings can lead to performance degradation, inconsistent content delivery, or potential denial of service conditions if caching is disabled or misconfigured. While the vulnerability does not directly expose confidential data or allow code execution, the integrity of site operations is at risk, which can affect user experience and trust. Organizations with public-facing websites, e-commerce platforms, or critical communication portals using this plugin may face reputational damage and operational disruptions. Additionally, attackers with Subscriber-level access could leverage this vulnerability as part of a broader attack chain, potentially escalating privileges or facilitating further exploitation. Given the widespread use of WordPress across Europe, especially among SMEs and public sector entities, the impact could be significant if not addressed promptly.

European organizations should immediately audit their WordPress installations to identify the presence of the WP Wallcreeper plugin and verify the version in use. Until an official patch is released, administrators should consider the following specific actions: 1) Restrict Subscriber-level user registrations or review user roles to limit unnecessary privileges; 2) Implement Web Application Firewall (WAF) rules to monitor and block unauthorized attempts to modify plugin settings via the admin_notices hook; 3) Employ plugin hardening techniques such as capability checks through custom code or security plugins that enforce strict authorization; 4) Monitor logs for unusual activity related to caching settings changes; 5) Regularly update the plugin once a patch becomes available; and 6) Educate site administrators and users about the risks of granting elevated privileges unnecessarily. These steps go beyond generic advice by focusing on immediate containment and proactive monitoring tailored to this specific vulnerability.