Unauthenticated Broken Access Control in Subscriptions for WooCommerce

Executive Summary

CVE-2026-56061 is a Broken Access Control vulnerability in the WordPress Subscriptions for WooCommerce Plugin versions 1.9.5 and below.

This vulnerability allows unauthenticated users to perform actions that normally require higher privileges because the plugin lacks proper authorization, authentication, or nonce token checks.

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Detection Guidance

The vulnerability affects Subscriptions for WooCommerce Plugin versions 1.9.5 and below, allowing unauthenticated users to perform higher-privileged actions due to broken access control.

Detection involves verifying the plugin version installed on your WordPress site and checking for unauthorized access attempts or suspicious activity related to subscription management.

You can detect the vulnerable plugin version by running commands to check the installed plugin version, for example:

• Using WP-CLI to check plugin version: wp plugin list | grep subscriptions-for-woocommerce
• Manually inspecting the plugin version in the WordPress admin dashboard under Plugins.

To detect exploitation attempts on your network, monitor web server logs for unusual or unauthorized requests targeting subscription-related endpoints, especially from unauthenticated sources.

Example command to search Apache or Nginx logs for suspicious access patterns:

• grep -i 'subscriptions-for-woocommerce' /var/log/apache2/access.log
• grep -i 'subscriptions-for-woocommerce' /var/log/nginx/access.log

Additionally, look for HTTP requests that attempt to perform privileged actions without authentication.

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Impact Analysis

The vulnerability can lead to unauthorized users performing privileged actions on affected websites without authentication.

This poses a risk of mass exploitation campaigns targeting thousands of websites using the vulnerable plugin.

Users of the plugin are advised to update to version 1.9.6 immediately or seek assistance from their hosting provider or developer to mitigate this risk.

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Compliance Impact

The provided information does not specify how the Broken Access Control vulnerability in Subscriptions for WooCommerce affects compliance with common standards and regulations such as GDPR or HIPAA.

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Mitigation Strategies

The vulnerability affects Subscriptions for WooCommerce Plugin versions 1.9.5 and below.

To mitigate this vulnerability, you should immediately update the plugin to version 1.9.6 or later.

Alternatively, seek assistance from your hosting provider or developer to apply the necessary patches.

If you use Patchstack, enable auto-updates for vulnerable plugins to ensure timely patching.

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