CVE-2024-6590 is a vulnerability classified under CWE-862 (Missing Authorization) affecting the WordPress plugin 'Spreadsheet Integration – Automate Google Sheets With WordPress, WooCommerce & Most Popular Form Plugins. Also, Display Google sheet as a Table' developed by javmah. The issue stems from the plugin's failure to perform proper capability checks on several critical functions, including editing post statuses and managing Google Sheet integrations. This lack of authorization validation allows any authenticated user with Subscriber-level privileges or higher to perform unauthorized modifications, such as altering post statuses and creating or editing Google Sheet integrations. Since Subscriber-level access is typically granted to low-privilege users, this vulnerability significantly lowers the barrier for exploitation. The CVSS v3.1 base score is 6.3, indicating a medium severity level, with attack vector being network-based, low attack complexity, requiring privileges but no user interaction, and impacting confidentiality, integrity, and availability to a limited extent. The vulnerability affects all plugin versions up to 3.7.9, and no patches or fixes are currently linked, suggesting users must rely on other mitigations until an update is released. No known exploits have been observed in the wild, but the potential for unauthorized data manipulation in WordPress environments integrated with Google Sheets is a concern, especially for sites relying on this plugin for business or operational workflows.

The vulnerability allows attackers with minimal authenticated access to manipulate data and configurations within the affected plugin. This can lead to unauthorized changes in post statuses, potentially disrupting content workflows or publishing unintended content. Additionally, attackers can modify or create Google Sheet integrations, which could result in data leakage, data corruption, or injection of malicious data into business-critical spreadsheets. The compromise of data integrity and availability can affect organizations relying on automated Google Sheets workflows for reporting, inventory, or customer data management. Since WordPress is widely used globally, and this plugin integrates with popular platforms like WooCommerce and form plugins, the impact can extend to e-commerce sites, marketing platforms, and data collection systems. The vulnerability could be leveraged for privilege escalation or lateral movement within compromised WordPress environments, increasing the risk of broader system compromise. Although no exploits are known in the wild, the ease of exploitation and the scope of affected systems make this a significant risk for organizations using this plugin.

Organizations should immediately verify if they use the affected plugin and identify the version in use. Until an official patch is released, administrators should restrict plugin access to trusted users only, minimizing Subscriber-level accounts or elevating their monitoring. Implement strict user role management to limit the number of users with authenticated access. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious requests targeting plugin endpoints related to Google Sheet integrations and post status modifications. Monitor logs for unusual activities such as unexpected changes to post statuses or Google Sheet integration configurations. Consider temporarily disabling the plugin if it is not critical to operations. Keep WordPress core and all plugins updated regularly and subscribe to vendor advisories for patch releases. Additionally, enforce multi-factor authentication (MFA) for all WordPress users to reduce the risk of credential compromise. Conduct regular security audits and penetration testing focusing on authorization controls within WordPress environments.