Executive Summary

CVE-2026-39501 is a Missing Authorization vulnerability in the RealMag777 FOX woocommerce-currency-switcher WordPress plugin versions up to and including 1.4.5.

This vulnerability is classified as Broken Access Control, meaning that the plugin lacks proper authorization, authentication, or nonce token checks in some of its functions.

As a result, unauthenticated users can perform actions that normally require higher privileges.

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

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Impact Analysis

The impact of this vulnerability is considered low severity with a CVSS score of 5.3.

Although exploitation is unlikely to cause significant harm, attackers can perform unauthorized actions on affected websites.

Such vulnerabilities are often targeted in mass-exploit campaigns that affect many websites regardless of their popularity or traffic.

Users of the affected plugin versions are strongly advised to update to version 1.4.6 or later, which includes patches to enforce proper access control and mitigate the risk.

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Detection Guidance

This vulnerability arises from missing authorization, authentication, or nonce token checks within plugin functions, allowing unauthenticated users to perform actions that require higher privileges.

Detection would involve checking if the WordPress FOX Plugin version installed is up to and including 1.4.5, as these versions are vulnerable.

Specific commands are not provided in the available resources, but generally, you can detect the plugin version by running commands such as:

• Using WP-CLI: wp plugin list | grep woocommerce-currency-switcher
• Checking the plugin version in the WordPress admin dashboard under Plugins.

Network detection of exploit attempts would require monitoring for unauthorized access attempts to plugin functions, but no specific network detection commands or signatures are provided.

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Mitigation Strategies

The primary mitigation step is to update the FOX Plugin to version 1.4.6 or later, which includes patches to enforce proper access control.

Additionally, using Patchstack mitigation solutions, such as auto-updates for vulnerable plugins, can provide rapid protection.

Since the vulnerability requires no prior authentication to exploit, immediate patching is strongly advised to prevent unauthorized actions.

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Compliance Impact

The CVE-2026-39501 vulnerability is a Broken Access Control issue that allows unauthenticated users to perform actions requiring higher privileges due to missing authorization checks.

While the vulnerability has a low severity score and limited impact, broken access control issues can potentially lead to unauthorized access to sensitive data or functionality.

Such unauthorized access could pose risks to compliance with standards and regulations like GDPR or HIPAA, which require strict access controls to protect personal and sensitive information.

However, the provided information does not explicitly state the direct impact of this vulnerability on compliance with these regulations.

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