CVE-2026-39706: Make My Trivia Auth Bypass Vulnerability

CVE-2026-39706 Overview

CVE-2026-39706 is a Missing Authorization vulnerability (CWE-862) affecting the Make My Trivia WordPress plugin developed by Netro Systems. This broken access control flaw allows unauthenticated attackers to exploit incorrectly configured access control security levels, potentially gaining unauthorized access to plugin functionality and data.

The vulnerability exists because the plugin fails to properly verify user permissions before allowing access to restricted functionality. Attackers exploiting this flaw can bypass authorization checks that should prevent unauthorized users from accessing protected resources or performing privileged actions.

Critical Impact

Unauthenticated attackers can exploit missing authorization checks to access restricted plugin functionality, potentially exposing sensitive trivia data or manipulating plugin settings without proper permissions.

Affected Products

• Make My Trivia WordPress plugin version 1.1.0 and earlier
• WordPress installations running vulnerable versions of the trivialy plugin
• All sites with the Make My Trivia plugin installed without additional access controls

Discovery Timeline

• 2026-04-08 - CVE-2026-39706 published to NVD
• 2026-04-08 - Last updated in NVD database

Technical Details for CVE-2026-39706

Vulnerability Analysis

This vulnerability falls under the category of Broken Access Control, specifically Missing Authorization (CWE-862). The Make My Trivia plugin fails to implement proper authorization checks on one or more of its endpoints or functions. When a user attempts to access restricted functionality, the plugin does not verify whether the requesting user has the appropriate permissions to perform that action.

In WordPress plugin development, proper authorization typically requires checking user capabilities using functions like current_user_can() before executing privileged operations. When these checks are absent or improperly implemented, any user—including unauthenticated visitors—may be able to access functionality that should be restricted to administrators or other authorized roles.

The network-accessible attack vector means this vulnerability can be exploited remotely without requiring any prior authentication to the WordPress site. The low attack complexity indicates exploitation is straightforward and does not require special conditions.

Root Cause

The root cause of CVE-2026-39706 is the absence of proper authorization verification within the Make My Trivia plugin. The plugin exposes functionality through WordPress hooks, AJAX handlers, or REST API endpoints without implementing the necessary permission checks to ensure the requesting user has the appropriate capabilities.

This is a common security oversight in WordPress plugin development where developers focus on functionality but neglect to implement WordPress's built-in capability checking mechanisms. The plugin should verify user permissions before processing requests that access or modify protected resources.

Attack Vector

The attack vector is network-based, allowing remote exploitation. An attacker can craft HTTP requests to the vulnerable WordPress site targeting the affected plugin endpoints. Since no authentication is required and the attack complexity is low, an attacker simply needs to:

1. Identify a WordPress site running a vulnerable version of Make My Trivia (<= 1.1.0)
2. Send crafted requests to plugin endpoints that lack proper authorization checks
3. Access restricted functionality or data without providing valid credentials

The vulnerability allows information disclosure through unauthorized read access to protected resources. While the impact is limited to confidentiality with no direct impact on integrity or availability, sensitive trivia data or configuration information may be exposed.

Detection Methods for CVE-2026-39706

Indicators of Compromise

• Unusual HTTP requests to Make My Trivia plugin endpoints from unauthenticated sources
• Access log entries showing requests to /wp-content/plugins/trivialy/ paths from suspicious IP addresses
• Unexpected data access patterns or export requests targeting trivia content

Detection Strategies

• Monitor WordPress access logs for requests to the trivialy plugin directory from unauthenticated sessions
• Implement Web Application Firewall (WAF) rules to detect and block unauthorized access attempts to plugin endpoints
• Review audit logs for access to trivia data by users without appropriate WordPress roles

Monitoring Recommendations

• Enable WordPress debug logging to capture plugin-related errors and unauthorized access attempts
• Configure alerting for high-volume requests to plugin endpoints from single IP addresses
• Implement real-time monitoring for unauthorized data access patterns on WordPress installations

How to Mitigate CVE-2026-39706

Immediate Actions Required

• Update the Make My Trivia plugin to a patched version when available from the vendor
• If no patch is available, consider temporarily deactivating the trivialy plugin until a fix is released
• Implement additional access controls at the web server or WAF level to restrict access to plugin functionality
• Review WordPress user roles and capabilities to ensure principle of least privilege

Patch Information

At the time of publication, users should monitor the Patchstack Vulnerability Advisory for updates on available patches. The vulnerability affects Make My Trivia versions through 1.1.0. Users should update to any version released after this advisory that addresses the missing authorization issue.

Workarounds

• Temporarily disable the Make My Trivia plugin if it is not critical to site operations
• Implement IP-based access restrictions to limit who can interact with plugin endpoints
• Use a WordPress security plugin to add additional authentication layers
• Configure .htaccess rules to restrict direct access to the plugin directory for non-authenticated users

# Example .htaccess restriction for plugin directory
# Add to /wp-content/plugins/trivialy/.htaccess

# Restrict direct access to plugin files
<FilesMatch "\.php$">
    Order Deny,Allow
    Deny from all
    Allow from 127.0.0.1
</FilesMatch>

# Note: This is a temporary workaround - update to a patched version when available