Executive Summary

CVE-2026-31921 is a high-priority Broken Access Control vulnerability in the WordPress Product Rearrange for WooCommerce plugin versions up to and including 1.2.2.

This vulnerability allows unauthenticated users to perform actions that normally require higher privileges because of missing authorization, authentication, or nonce token checks in certain plugin functions.

It falls under the OWASP Top 10 category A1: Broken Access Control and requires no prior authentication to exploit.

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Impact Analysis

This vulnerability can allow attackers to perform unauthorized actions on your WooCommerce site without needing to log in.

Because it is a Broken Access Control issue, attackers could manipulate or rearrange products or perform other privileged actions, potentially disrupting your e-commerce operations.

The vulnerability has a high severity score of 8.2 and is likely to be exploited in mass campaigns targeting many websites, regardless of their size or popularity.

No official patch is currently available, so users must apply mitigation rules or seek assistance to reduce risk until a patch is released.

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Detection Guidance

This vulnerability allows unauthenticated users to perform privileged actions due to missing authorization checks in the Product Rearrange for WooCommerce plugin up to version 1.2.2.

Detection on your network or system would involve monitoring for unauthorized access attempts or suspicious activity targeting the plugin's functions that require higher privileges.

Since no specific detection commands or signatures are provided, it is recommended to monitor web server logs for unusual POST or GET requests to endpoints related to the Product Rearrange for WooCommerce plugin, especially those that could modify product arrangements without authentication.

Additionally, applying the mitigation rule provided by Patchstack can help block exploit attempts and serve as a detection mechanism by logging blocked requests.

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Mitigation Strategies

Immediate mitigation steps include applying the mitigation rule issued by Patchstack to block attacks targeting this vulnerability until an official patch is released.

Users are strongly advised to update the Product Rearrange for WooCommerce plugin to a patched version as soon as it becomes available.

In the meantime, seek assistance from your hosting provider or web developer to implement security controls and continuous monitoring to protect your website.

Rapid mitigation and continuous security monitoring are emphasized to reduce the risk of exploitation.

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Compliance Impact

The provided information does not specify how the Missing Authorization vulnerability in Product Rearrange for WooCommerce directly affects compliance with common standards and regulations such as GDPR or HIPAA.

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