CVE-2025-30797 identifies a missing authorization vulnerability in the Greek Multi Tool plugin developed by bigdrop.gr, which is designed to enhance WordPress sites by fixing permalinks, handling Greek accents, and automating menu creation. The vulnerability arises from improperly configured access control mechanisms that fail to enforce authorization checks on certain plugin functionalities. This misconfiguration allows attackers to bypass security controls and perform unauthorized operations that should be restricted to privileged users. The affected versions include all releases up to and including version 2.3.1. Although no public exploits have been reported, the nature of the vulnerability suggests that an attacker with access to the plugin's endpoints could manipulate site configurations or content without proper permissions. The plugin is specialized for Greek language WordPress sites, indicating a niche but potentially impactful target group. The lack of a CVSS score requires an expert severity assessment, which considers the potential for unauthorized administrative actions and the ease of exploitation due to missing authorization checks. The vulnerability does not appear to require user interaction, increasing its risk profile. The absence of patch links suggests that users should monitor for updates or implement manual access restrictions as interim mitigation.

The primary impact of this vulnerability is unauthorized access to administrative functions within WordPress sites using the Greek Multi Tool plugin. Attackers exploiting this flaw could modify site permalinks, alter menu structures, or change content presentation without authorization, potentially leading to website defacement, misinformation, or disruption of user experience. This could degrade the integrity and availability of affected websites and damage organizational reputation. For businesses relying on Greek language WordPress sites, this could result in operational disruptions and loss of user trust. Although no direct data exfiltration is indicated, unauthorized configuration changes could be leveraged as a foothold for further attacks or privilege escalation. The scope is limited to sites using this specific plugin, but given WordPress’s widespread use, the affected population could be significant within Greek-speaking communities. The ease of exploitation due to missing authorization checks elevates the threat level, especially for sites with publicly accessible administrative interfaces.

Organizations should immediately audit their WordPress installations to identify the presence of the Greek Multi Tool plugin and verify the version in use. Until an official patch is released, administrators should restrict access to the plugin’s administrative interfaces using web server access controls (e.g., IP whitelisting, HTTP authentication) to limit exposure. Implementing strict WordPress user role management and ensuring that only trusted users have administrative privileges can reduce risk. Monitoring web server and application logs for unusual access patterns related to the plugin endpoints is recommended to detect potential exploitation attempts. Additionally, organizations should subscribe to bigdrop.gr or relevant security advisories for timely patch releases and apply updates promptly once available. If feasible, temporarily disabling the plugin until a fix is issued can prevent exploitation. Security teams should also consider deploying web application firewalls (WAFs) with custom rules to block unauthorized access to the plugin’s functionalities.