CVE-2025-47640: Printcart WooCommerce Designer SQLi Flaw

CVE-2025-47640 Overview

CVE-2025-47640 is a critical SQL Injection vulnerability affecting the Printcart Web to Print Product Designer plugin for WooCommerce. This vulnerability stems from improper neutralization of special elements used in SQL commands, allowing unauthenticated attackers to execute arbitrary SQL queries against the WordPress database through the network.

The vulnerability enables attackers to manipulate database queries without requiring any authentication or user interaction, potentially leading to unauthorized access to sensitive data stored in the WordPress database, including customer information, order details, and administrative credentials.

Critical Impact

Unauthenticated SQL Injection allowing attackers to extract sensitive database contents including user credentials, customer data, and potentially gain administrative access to WordPress installations.

Affected Products

• Printcart Web to Print Product Designer for WooCommerce versions up to and including 2.3.8
• WordPress installations using the affected plugin versions
• WooCommerce stores with the Printcart integration enabled

Discovery Timeline

• May 23, 2025 - CVE-2025-47640 published to NVD
• May 23, 2025 - Last updated in NVD database

Technical Details for CVE-2025-47640

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists in the Printcart Web to Print Product Designer for WooCommerce plugin. The flaw allows remote attackers to inject malicious SQL statements through network-accessible input vectors without requiring any authentication or privileges.

The vulnerability has a Changed scope, meaning successful exploitation can affect resources beyond the vulnerable component itself. Attackers can achieve high impact on confidentiality by extracting sensitive data from the database, while availability impact is limited to partial denial of service through resource exhaustion or data manipulation.

The network attack vector with low complexity makes this vulnerability particularly dangerous for internet-facing WooCommerce stores, as it can be exploited remotely without requiring local access or special conditions.

Root Cause

The root cause of CVE-2025-47640 is insufficient input validation and sanitization of user-supplied data before it is incorporated into SQL queries. The plugin fails to properly escape or parameterize database queries, allowing attackers to break out of the intended query structure and inject their own SQL commands.

WordPress provides built-in functions like $wpdb->prepare() for safe database queries, but the vulnerable code paths in the Printcart plugin do not adequately utilize these protections, leaving the application susceptible to SQL injection attacks.

Attack Vector

The attack vector is network-based, requiring no authentication or user interaction. An attacker can craft malicious HTTP requests containing SQL injection payloads targeting vulnerable endpoints in the Printcart plugin. These payloads are then executed against the WordPress database with the privileges of the database user configured for the WordPress installation.

Common exploitation techniques include:

• Union-based SQL injection to extract data from other tables
• Boolean-based blind SQL injection to enumerate database contents
• Time-based blind SQL injection when direct output is not visible
• Error-based injection to leverage database error messages for data extraction

The vulnerability allows attackers to potentially access the wp_users table containing administrator password hashes, the wp_options table containing sensitive configuration data, and WooCommerce tables containing customer and order information.

Detection Methods for CVE-2025-47640

Indicators of Compromise

• Unusual database query patterns in WordPress or web server logs
• HTTP requests containing SQL syntax characters such as single quotes, double quotes, semicolons, or SQL keywords targeting Printcart plugin endpoints
• Unexpected database errors or timeouts potentially indicating SQL injection attempts
• Evidence of data exfiltration through DNS or HTTP channels

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection payloads in requests to WordPress plugin endpoints
• Monitor database query logs for anomalous queries containing UNION SELECT, CONCAT, or other SQL injection patterns
• Deploy intrusion detection systems with signatures for common SQL injection attack patterns
• Review access logs for requests with encoded SQL syntax or unusually long query parameters

Monitoring Recommendations

• Enable detailed logging for the WordPress database and review for unauthorized SELECT queries against sensitive tables
• Configure alerting for failed authentication attempts following suspicious database activity
• Monitor for unusual outbound connections that may indicate data exfiltration following successful exploitation
• Implement database activity monitoring to detect queries accessing multiple tables in rapid succession

How to Mitigate CVE-2025-47640

Immediate Actions Required

• Update Printcart Web to Print Product Designer for WooCommerce to a patched version newer than 2.3.8 immediately
• If an update is not available, consider temporarily disabling the Printcart plugin until a patch is released
• Implement Web Application Firewall rules to block SQL injection attempts as an interim protection measure
• Review database logs and access records for signs of prior exploitation

Patch Information

The vulnerability affects Printcart Web to Print Product Designer for WooCommerce through version 2.3.8. Site administrators should check the WordPress plugin repository for updates beyond this version. Additional technical details and patch status can be found in the Patchstack vulnerability database entry.

Workarounds

• Temporarily disable the Printcart Web to Print Product Designer plugin if business operations permit
• Deploy a Web Application Firewall with SQL injection protection rules in front of the WordPress installation
• Restrict database user privileges to minimum required operations to limit potential damage from successful exploitation
• Implement network-level access controls to limit who can reach the WordPress administrative interfaces

# Configuration example - WordPress .htaccess WAF rules for SQL injection protection
# Add to .htaccess file in WordPress root directory

<IfModule mod_rewrite.c>
    RewriteEngine On
    # Block common SQL injection patterns
    RewriteCond %{QUERY_STRING} (\%27)|(\')|(\-\-)|(\%23)|(#) [NC,OR]
    RewriteCond %{QUERY_STRING} (union)(.*)(select) [NC,OR]
    RewriteCond %{QUERY_STRING} (insert)(.*)(into) [NC,OR]
    RewriteCond %{QUERY_STRING} (select)(.*)(from) [NC]
    RewriteRule ^(.*)$ - [F,L]
</IfModule>