CVE-2025-31377: Woo Product Feed Auth Bypass Vulnerability

CVE-2025-31377 Overview

CVE-2025-31377 is a Missing Authorization vulnerability affecting the Woo Product Feed For Marketing Channels WordPress plugin (also known as woocommerce-to-google-merchant-center). This broken access control flaw allows unauthenticated attackers to exploit incorrectly configured access control security levels, potentially leading to denial of service conditions on affected WordPress installations.

The vulnerability stems from missing authorization checks in the plugin's functionality, enabling attackers to bypass security controls without requiring authentication. This type of access control weakness is classified under CWE-862 (Missing Authorization), a common vulnerability pattern in WordPress plugins where proper capability checks are not implemented.

Critical Impact

Unauthenticated attackers can exploit this missing authorization vulnerability to cause denial of service, disrupting WooCommerce product feed operations and potentially affecting e-commerce availability.

Affected Products

• Woo Product Feed For Marketing Channels versions through 1.9.0
• WordPress installations running the woocommerce-to-google-merchant-center plugin
• WooCommerce stores utilizing product feed marketing integrations

Discovery Timeline

• 2025-04-09 - CVE-2025-31377 published to NVD
• 2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-31377

Vulnerability Analysis

This vulnerability is a Missing Authorization flaw (CWE-862) that allows attackers to access plugin functionality without proper authentication or capability verification. The Woo Product Feed For Marketing Channels plugin fails to implement adequate access control checks on certain endpoints or functions, allowing unauthenticated users to trigger actions that should be restricted to authorized users only.

The attack can be executed remotely over the network without requiring any user interaction or prior authentication, making it particularly concerning for publicly accessible WordPress e-commerce sites. The primary impact is on availability, as successful exploitation can lead to denial of service conditions affecting the product feed functionality.

Root Cause

The root cause is the absence of proper authorization checks within the plugin's code. WordPress plugins should implement capability checks using functions like current_user_can() to verify that users have appropriate permissions before executing sensitive operations. The Woo Product Feed For Marketing Channels plugin versions through 1.9.0 fail to implement these necessary authorization controls on certain functionality.

This represents a classic broken access control vulnerability where the application does not verify whether the requesting user has the required privileges to perform the requested action.

Attack Vector

The vulnerability is exploitable via network-based attacks with low complexity. Attackers do not need any privileges or user interaction to exploit this flaw. The attack vector involves:

1. An attacker identifies a WordPress site running the vulnerable Woo Product Feed For Marketing Channels plugin
2. The attacker sends crafted requests to plugin endpoints that lack authorization checks
3. Without proper capability verification, the plugin processes these requests
4. Repeated exploitation can lead to resource exhaustion and denial of service

The technical advisory from Patchstack provides additional details about this WordPress Woo Product Feed vulnerability.

Detection Methods for CVE-2025-31377

Indicators of Compromise

• Unusual HTTP request patterns targeting the woocommerce-to-google-merchant-center plugin endpoints
• Unexpected plugin-related errors or crashes in WordPress error logs
• Abnormal resource consumption associated with product feed operations
• Multiple unauthenticated requests to plugin-specific AJAX handlers or REST API endpoints

Detection Strategies

• Monitor WordPress access logs for suspicious requests to the woocommerce-to-google-merchant-center plugin directory
• Implement Web Application Firewall (WAF) rules to detect unauthorized access attempts to plugin endpoints
• Review server resource utilization for anomalies that may indicate exploitation attempts
• Configure WordPress security plugins to alert on broken access control patterns

Monitoring Recommendations

• Enable detailed logging for plugin activity and WordPress AJAX handlers
• Set up alerts for unusual traffic patterns targeting WooCommerce-related plugin endpoints
• Monitor for failed authentication attempts followed by successful plugin function execution
• Implement rate limiting on plugin endpoints to mitigate potential DoS attacks

How to Mitigate CVE-2025-31377

Immediate Actions Required

• Update Woo Product Feed For Marketing Channels plugin to a version newer than 1.9.0 that contains the security fix
• Review WordPress user roles and capabilities to ensure proper access controls are enforced
• Implement a Web Application Firewall (WAF) to provide an additional layer of protection
• Audit access logs for signs of exploitation attempts on the affected plugin

Patch Information

The vulnerability affects Woo Product Feed For Marketing Channels versions through 1.9.0. Site administrators should update to the latest available version of the plugin that addresses this missing authorization vulnerability. Check the WordPress plugin repository or the Patchstack vulnerability report for current patch status.

Workarounds

• Temporarily disable the Woo Product Feed For Marketing Channels plugin if updates are not immediately available
• Implement IP-based access restrictions to limit access to WordPress administrative functions
• Use a WordPress security plugin to add virtual patching capabilities
• Configure server-level access controls to restrict unauthorized requests to plugin directories

# Example: Restrict access to plugin directory via .htaccess (temporary workaround)
# Add to wp-content/plugins/woocommerce-to-google-merchant-center/.htaccess
<Files *.php>
  Order Deny,Allow
  Deny from all
  Allow from 127.0.0.1
</Files>