CVE-2026-24946: WooCommerce Delivery Notes Auth Bypass

CVE-2026-24946 Overview

CVE-2026-24946 is a Missing Authorization vulnerability (CWE-862) affecting the Print Invoice & Delivery Notes for WooCommerce plugin developed by tychesoftwares. This WordPress plugin vulnerability allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized access to plugin functionality that should be restricted to authenticated users with appropriate permissions.

The vulnerability stems from broken access control mechanisms within the plugin, where proper authorization checks are not enforced before allowing certain operations. This can lead to unauthorized users accessing or manipulating invoice and delivery note functionality.

Critical Impact

Unauthenticated attackers can exploit this broken access control vulnerability to bypass authorization checks, potentially accessing or modifying invoice and delivery note data on affected WooCommerce installations.

Affected Products

• Print Invoice & Delivery Notes for WooCommerce versions through 5.8.0
• WordPress installations running vulnerable versions of the woocommerce-delivery-notes plugin
• WooCommerce stores utilizing the affected plugin for invoice generation

Discovery Timeline

• February 20, 2026 - CVE-2026-24946 published to NVD
• February 26, 2026 - Last updated in NVD database

Technical Details for CVE-2026-24946

Vulnerability Analysis

This vulnerability represents a Broken Access Control flaw where the plugin fails to properly verify user authorization before permitting access to protected functionality. The attack can be launched remotely over the network without requiring user interaction or prior authentication, making it accessible to any attacker who can reach the target WordPress installation.

The impact of successful exploitation includes potential integrity compromise through unauthorized modifications and availability impact through disruption of normal plugin operations. While confidentiality is not directly affected, the integrity and availability concerns make this a significant security issue for WooCommerce store operators who rely on this plugin for their invoice and delivery note workflows.

Root Cause

The root cause is a Missing Authorization vulnerability (CWE-862). The plugin does not implement adequate permission checks on certain endpoints or functions, allowing requests to be processed without verifying that the requesting user has the appropriate privileges. This type of flaw typically occurs when developers fail to implement proper capability checks using WordPress's built-in authorization functions like current_user_can() before executing sensitive operations.

Attack Vector

The attack vector is network-based, meaning attackers can exploit this vulnerability remotely without physical access to the target system. The vulnerability requires no user interaction and can be exploited without authentication credentials. An attacker would typically:

1. Identify a WordPress installation running a vulnerable version of the Print Invoice & Delivery Notes for WooCommerce plugin
2. Craft requests targeting the unprotected functionality
3. Submit requests directly to the vulnerable endpoints, bypassing authorization checks
4. Access or manipulate invoice and delivery note data without proper authorization

Technical details regarding specific exploitation methods can be found in the Patchstack Vulnerability Report.

Detection Methods for CVE-2026-24946

Indicators of Compromise

• Unexpected or unauthorized access to invoice generation or delivery note functionality in web server logs
• Unusual API requests to woocommerce-delivery-notes plugin endpoints from unauthenticated sessions
• Access log entries showing requests to plugin-specific URLs without corresponding authentication events
• Anomalous patterns in invoice or delivery note generation activity outside normal business operations

Detection Strategies

• Monitor WordPress access logs for requests to the woocommerce-delivery-notes plugin directory from unauthenticated users
• Implement Web Application Firewall (WAF) rules to detect and block suspicious requests targeting the plugin
• Review plugin activity logs for unauthorized invoice or delivery note operations
• Deploy security monitoring solutions that can identify broken access control exploitation patterns

Monitoring Recommendations

• Enable detailed logging on WordPress installations to capture all plugin-related activity
• Configure alerts for unusual access patterns to WooCommerce administrative functions
• Regularly audit plugin access logs and compare against expected user activity
• Implement real-time monitoring for requests that bypass authentication to protected plugin endpoints

How to Mitigate CVE-2026-24946

Immediate Actions Required

• Update Print Invoice & Delivery Notes for WooCommerce to a patched version that addresses this authorization vulnerability
• Review plugin settings and ensure access controls are properly configured
• Audit recent access logs for evidence of exploitation attempts
• Consider temporarily disabling the plugin if no patch is available and the functionality is not critical

Patch Information

Organizations should monitor the plugin developer's official channels and the WordPress plugin repository for security updates that address this broken access control vulnerability. The Patchstack Vulnerability Report provides additional details on the vulnerability and remediation guidance.

Workarounds

• Implement Web Application Firewall (WAF) rules to restrict access to vulnerable plugin endpoints
• Limit access to WordPress admin and WooCommerce functionality to trusted IP addresses where feasible
• Consider using security plugins that add additional authorization layers to WordPress functionality
• Temporarily disable the plugin until an official patch is available if the risk is unacceptable

# Configuration example - Restrict access to plugin endpoints via .htaccess
# Add to WordPress .htaccess file to limit access by IP
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_URI} ^.*woocommerce-delivery-notes.*$
    RewriteCond %{REMOTE_ADDR} !^192\.168\.1\. [NC]
    RewriteRule .* - [F,L]
</IfModule>