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CVE Vulnerability Database
Vulnerability Database/CVE-2026-39704

CVE-2026-39704: Precious Metals Pricing Auth Bypass Flaw

CVE-2026-39704 is an authorization bypass flaw in Precious Metals Automated Product Pricing Pro plugin that allows attackers to exploit misconfigured access controls. This article covers technical details, versions up to 4.0.5, and mitigation.

Published: April 10, 2026

CVE-2026-39704 Overview

CVE-2026-39704 is a Missing Authorization vulnerability affecting the Precious Metals Automated Product Pricing – Pro WordPress plugin developed by nfusionsolutions. This broken access control flaw allows attackers to exploit incorrectly configured access control security levels, potentially gaining unauthorized access to sensitive functionality or data within WordPress installations using this plugin.

The vulnerability stems from inadequate authorization checks (CWE-862), where the plugin fails to properly verify user permissions before allowing access to protected resources or functions. This type of flaw can enable unauthenticated or low-privileged users to perform actions that should be restricted to administrators or other authorized roles.

Critical Impact

Unauthenticated attackers can exploit this broken access control vulnerability to bypass security restrictions and access sensitive pricing configuration or product data in affected WordPress e-commerce installations.

Affected Products

  • Precious Metals Automated Product Pricing – Pro plugin versions from n/a through <= 4.0.5
  • WordPress installations using the affected plugin versions
  • E-commerce sites leveraging precious metals pricing functionality

Discovery Timeline

  • April 8, 2026 - CVE-2026-39704 published to NVD
  • April 8, 2026 - Last updated in NVD database

Technical Details for CVE-2026-39704

Vulnerability Analysis

This vulnerability is classified as Missing Authorization (CWE-862), a common security weakness in WordPress plugins where access control checks are either absent or improperly implemented. The attack vector is network-based and requires no authentication or user interaction, making it particularly concerning for publicly accessible WordPress installations.

The vulnerability allows attackers to exploit incorrectly configured access control security levels within the plugin. In the context of a pricing plugin for precious metals, this could potentially expose sensitive business logic, pricing algorithms, or configuration data that should be protected from unauthorized access.

Root Cause

The root cause is the absence of proper authorization checks within the plugin's codebase. WordPress plugins should implement capability checks using functions like current_user_can() to verify that users have appropriate permissions before executing sensitive operations. When these checks are missing or incorrectly implemented, unauthorized users can access restricted functionality.

In this case, the Precious Metals Automated Product Pricing – Pro plugin fails to validate user permissions adequately, allowing requests to be processed without verifying the requester's authorization level.

Attack Vector

The vulnerability is exploitable over the network without requiring authentication or user interaction. An attacker can send specially crafted requests to the vulnerable WordPress installation to bypass access control mechanisms.

The exploitation process typically involves:

  1. Identifying WordPress installations running the vulnerable plugin version (<= 4.0.5)
  2. Crafting requests that target unprotected endpoints or functionality
  3. Accessing or manipulating data/functionality that should require authorization

For detailed technical information about this vulnerability, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2026-39704

Indicators of Compromise

  • Unusual HTTP requests to WordPress AJAX handlers or REST API endpoints associated with the pricing plugin
  • Access log entries showing unauthenticated requests to plugin-specific administrative functions
  • Unexpected changes to precious metals pricing configurations or product data
  • Elevated volume of requests from single IP addresses targeting plugin endpoints

Detection Strategies

  • Monitor WordPress access logs for requests to /wp-admin/admin-ajax.php with actions related to the precious metals pricing plugin from unauthenticated sessions
  • Implement Web Application Firewall (WAF) rules to detect and block suspicious requests targeting known vulnerable endpoints
  • Deploy file integrity monitoring to detect unauthorized modifications to plugin settings or database entries
  • Review WordPress audit logs for unexpected configuration changes to the pricing plugin

Monitoring Recommendations

  • Enable comprehensive logging on WordPress installations to capture all HTTP requests and authentication events
  • Configure alerting for failed authorization attempts or access to restricted plugin functionality
  • Implement real-time monitoring of plugin-related database tables for unauthorized modifications
  • Use SentinelOne Singularity platform to monitor endpoint activity and detect post-exploitation behavior

How to Mitigate CVE-2026-39704

Immediate Actions Required

  • Update the Precious Metals Automated Product Pricing – Pro plugin to a patched version (if available) that addresses the authorization vulnerability
  • If no patch is available, consider temporarily disabling the plugin until a fix is released
  • Implement additional access control measures at the web server or WAF level to restrict access to plugin endpoints
  • Review WordPress user accounts and permissions to ensure principle of least privilege

Patch Information

Consult the plugin vendor (nfusionsolutions) for the latest security updates. The vulnerability affects versions through 4.0.5. Check the Patchstack Vulnerability Report for updated remediation guidance and patch availability.

Workarounds

  • Implement IP whitelisting at the server level to restrict access to WordPress administrative functions
  • Use a security plugin like Wordfence or Sucuri to add additional access control layers
  • Configure .htaccess rules to block direct access to vulnerable plugin endpoints for unauthenticated users
  • Consider placing the WordPress admin area behind VPN or additional authentication mechanisms
bash
# Example .htaccess restriction for plugin directory
<Directory "/var/www/html/wp-content/plugins/precious-metals-automated-product-pricing-pro">
    <Files "*.php">
        Order Deny,Allow
        Deny from all
        Allow from 192.168.1.0/24
    </Files>
</Directory>

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

  • Vulnerability Details
  • TypeAuth Bypass

  • Vendor/TechPrecious Metals Automated Product Pricing

  • SeverityMEDIUM

  • CVSS Score5.3

  • EPSS Probability0.03%

  • Known ExploitedNo
  • CVSS Vector
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • Impact Assessment
  • ConfidentialityLow
  • IntegrityNone
  • AvailabilityNone
  • CWE References
  • CWE-862
  • Technical References
  • Patchstack Vulnerability Report
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