Overview
CVE-2025-66109 describes a Missing Authorization vulnerability found in the Cart Weight for WooCommerce plugin, specifically affecting versions up to and including 1.9.11. This vulnerability allows attackers to potentially exploit incorrectly configured access control security levels, potentially leading to unauthorized actions or data access within the WooCommerce environment.
Technical Details
The vulnerability stems from a lack of proper authorization checks within the Cart Weight for WooCommerce plugin. Specifically, the plugin fails to adequately verify user permissions before allowing certain actions related to cart weight management. This allows an attacker, possibly with minimal privileges, to bypass intended security measures and perform actions they shouldn’t have access to. Exploiting Incorrectly Configured Access Control Security Levels allows for the circumvention of the plugins permission settings.
Further technical details, including specific vulnerable functions and attack vectors, are documented in the Patchstack advisory.
CVSS Analysis
Based on available information, the severity and CVSS score are currently listed as N/A. This may be due to ongoing analysis. We strongly advise users to treat this vulnerability with caution and implement the recommended mitigation steps regardless. Severity can be raised when further analysis is complete.
Possible Impact
Although the exact impact depends on the specific implementation and configuration of the plugin, potential consequences of exploiting this vulnerability include:
- Unauthorized Modification of Cart Weight Settings: An attacker could potentially manipulate cart weight settings, leading to incorrect shipping calculations and financial losses.
- Data Exposure: Depending on the context of the incorrectly configured access controls, sensitive data related to the store or customer orders could be exposed.
- Denial of Service: In certain scenarios, exploiting this vulnerability could lead to a denial of service condition for the WooCommerce store.
Mitigation or Patch Steps
The recommended mitigation is to immediately update the Cart Weight for WooCommerce plugin to the latest available version. If a patch is not yet available (check the WordPress plugin repository and the plugin developer’s website), consider temporarily disabling the plugin until an update is released. Here are the steps:
- Check your current plugin version: Navigate to the Plugins section in your WordPress admin dashboard and identify the installed version of “Cart Weight for WooCommerce”.
- Update to the latest version: If you are running a version 1.9.11 or earlier, update the plugin through the WordPress dashboard. Go to Plugins -> Installed Plugins and click “Update Now” if available.
- Monitor for updates: If no update is currently available, monitor the WordPress plugin repository and the plugin developer’s website for announcements regarding a patched version.
- Consider temporary disablement: If an update is not immediately available and you are concerned about the risk, consider temporarily disabling the plugin until a patch is released.
