CVE-2026-27374: WooCommerce Order Details Auth Bypass

CVE-2026-27374 Overview

CVE-2026-27374 is a Missing Authorization vulnerability affecting the WooCommerce Order Details WordPress plugin developed by vanquish. This security flaw allows attackers to exploit incorrectly configured access control security levels, potentially enabling unauthorized access to sensitive order information within WooCommerce-powered e-commerce stores.

The vulnerability stems from CWE-862 (Missing Authorization), where the plugin fails to properly verify user permissions before allowing access to protected functionality. This type of broken access control vulnerability can have significant implications for e-commerce sites, as order details often contain sensitive customer information including names, addresses, payment details, and purchase history.

Critical Impact

Unauthorized users may be able to access, view, or manipulate WooCommerce order details without proper authentication, potentially exposing sensitive customer data and compromising e-commerce site integrity.

Affected Products

• WooCommerce Order Details plugin versions through 3.1
• WordPress installations running vulnerable versions of the woocommerce-order-details plugin

Discovery Timeline

• 2026-03-05 - CVE-2026-27374 published to NVD
• 2026-03-05 - Last updated in NVD database

Technical Details for CVE-2026-27374

Vulnerability Analysis

This vulnerability is classified as Missing Authorization (CWE-862), which occurs when the software does not perform an authorization check when an actor attempts to access a resource or perform an action. In the context of the WooCommerce Order Details plugin, this means that certain functions or endpoints that should require proper user authentication and authorization can be accessed by unauthorized parties.

WordPress plugins that interact with WooCommerce order data are particularly sensitive because they handle customer personally identifiable information (PII), transaction records, and potentially payment-related data. A missing authorization check in such a plugin can expose this data to malicious actors who can craft requests to access protected resources without having the necessary privileges.

Root Cause

The root cause of this vulnerability is the absence of proper capability checks within the WooCommerce Order Details plugin. WordPress provides a robust capability system through functions like current_user_can() that developers should use to verify user permissions before executing sensitive operations. When these checks are missing or improperly implemented, the plugin inadvertently allows lower-privileged users or unauthenticated visitors to perform actions that should be restricted to administrators or shop managers.

Attack Vector

An attacker can exploit this vulnerability by directly accessing plugin endpoints or AJAX handlers that lack proper authorization verification. Since the vulnerability involves incorrectly configured access control security levels, the attack typically involves:

1. Identifying vulnerable plugin endpoints that handle order data
2. Crafting HTTP requests to these endpoints without proper authentication tokens
3. Bypassing access controls to retrieve or manipulate order information

The exploitation does not require authentication in many cases, making it particularly dangerous for publicly accessible WordPress installations. For detailed technical information about this vulnerability, refer to the Patchstack WordPress Vulnerability Report.

Detection Methods for CVE-2026-27374

Indicators of Compromise

• Unexpected access to WooCommerce order endpoints from unauthenticated sessions or low-privilege user accounts
• Unusual patterns of order data queries in WordPress database logs
• Multiple requests to plugin-specific AJAX handlers from suspicious IP addresses
• Evidence of order data exfiltration in web server access logs

Detection Strategies

• Monitor WordPress access logs for unauthorized requests to woocommerce-order-details plugin endpoints
• Implement Web Application Firewall (WAF) rules to detect and block suspicious order data access patterns
• Review user activity logs for privilege escalation attempts or unauthorized data access
• Deploy SentinelOne Singularity to detect anomalous web application behavior and potential exploitation attempts

Monitoring Recommendations

• Enable detailed WordPress debug logging to capture unauthorized access attempts
• Configure alerts for bulk order data requests or unusual API access patterns
• Regularly audit user permissions and access control configurations in WordPress
• Monitor for new user account creation that could indicate post-exploitation activity

How to Mitigate CVE-2026-27374

Immediate Actions Required

• Update the WooCommerce Order Details plugin to a patched version when available from the vendor
• Temporarily disable the WooCommerce Order Details plugin if it is not business-critical until a patch is available
• Implement additional access control measures at the web server level to restrict access to sensitive plugin endpoints
• Review recent access logs for signs of exploitation and investigate any suspicious activity

Patch Information

Organizations should monitor the official WordPress plugin repository and the vendor's communications for security updates addressing this vulnerability. The Patchstack WordPress Vulnerability Report provides additional details and may include patch availability information.

Workarounds

• Restrict access to the WordPress admin area and WooCommerce endpoints using IP whitelisting at the web server level
• Implement a Web Application Firewall (WAF) with rules to block unauthorized access to order-related endpoints
• Consider using WordPress security plugins that provide additional access control layers and capability verification
• Temporarily remove the plugin from production environments if the functionality is not essential

# Apache .htaccess configuration to restrict plugin access
<FilesMatch "woocommerce-order-details">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
</FilesMatch>