CVE-2026-31920: WooCommerce Product Rearrange SQLi Flaw

CVE-2026-31920 Overview

CVE-2026-31920 is a critical Blind SQL Injection vulnerability affecting the Product Rearrange for WooCommerce WordPress plugin developed by Devteam HaywoodTech. This vulnerability allows unauthenticated attackers to execute arbitrary SQL commands against the WordPress database through improper neutralization of special elements in SQL queries.

Critical Impact
Unauthenticated attackers can exploit this Blind SQL Injection vulnerability to extract sensitive data from the WordPress database, including user credentials, customer information, and payment details stored by WooCommerce installations.

Affected Products

Product Rearrange for WooCommerce plugin version 1.2.2 and earlier
WordPress installations using the products-rearrange-woocommerce plugin
WooCommerce-enabled sites with vulnerable plugin versions

Discovery Timeline

2026-03-25 - CVE CVE-2026-31920 published to NVD
2026-03-26 - Last updated in NVD database

Technical Details for CVE-2026-31920

Vulnerability Analysis

This vulnerability stems from improper input validation and sanitization in the Product Rearrange for WooCommerce plugin. The plugin fails to adequately neutralize special SQL characters in user-supplied input before incorporating them into database queries. As a Blind SQL Injection vulnerability, attackers cannot directly view query results but can infer database contents through application behavior differences or time-based techniques.

The network-accessible attack vector combined with the lack of authentication requirements makes this vulnerability particularly dangerous for internet-facing WordPress/WooCommerce installations. Successful exploitation can lead to complete exposure of confidential database contents, though the scope is limited to read operations with potential for some service disruption.

Root Cause

The root cause is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command). The plugin developers failed to implement proper parameterized queries or prepared statements when handling user input. Instead, user-controlled data is concatenated directly into SQL query strings without adequate escaping or validation, allowing attackers to inject malicious SQL syntax.

Attack Vector

The vulnerability is exploitable over the network without requiring any authentication or user interaction. Attackers can craft malicious HTTP requests containing SQL injection payloads targeting the vulnerable plugin endpoints. Due to the blind nature of this vulnerability, attackers typically employ:

Boolean-based blind injection: Crafting payloads that cause different application responses based on true/false SQL conditions
Time-based blind injection: Using SQL delay functions like SLEEP() to infer database contents based on response timing

The attack can extract database schema information, user credentials, customer data, and other sensitive information stored within the WordPress database.

Detection Methods for CVE-2026-31920

Indicators of Compromise

Unusual database query patterns in MySQL/MariaDB slow query logs containing SQL injection syntax
HTTP request logs showing malformed parameters with SQL metacharacters (', ", ;, --, UNION, SELECT)
Abnormally long HTTP response times indicative of time-based SQL injection using SLEEP() or BENCHMARK()
Failed login attempts or unexpected administrative access following suspicious web traffic

Detection Strategies

Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns
Enable and monitor WordPress debug logging for database query errors
Implement database activity monitoring to flag unusual query structures or excessive data extraction
Review web server access logs for requests containing SQL injection indicators targeting WooCommerce endpoints

Monitoring Recommendations

Configure alerting on WordPress database query errors or exceptions
Monitor for unusual data exfiltration patterns from the WordPress database
Track plugin activity logs for unauthorized product manipulation operations
Establish baseline metrics for typical response times to detect time-based injection attempts

How to Mitigate CVE-2026-31920

Immediate Actions Required

Immediately deactivate the Product Rearrange for WooCommerce plugin (products-rearrange-woocommerce) on all WordPress installations
Review web server and database logs for evidence of prior exploitation attempts
Audit user accounts for unauthorized access or privilege changes
Consider changing database credentials if exploitation is suspected

Patch Information

At the time of publication, no official patch information is available from the vendor. Organizations should monitor the Patchstack SQL Injection Advisory for updates on remediation guidance. Until a patched version is released, the recommended approach is to completely remove or disable the vulnerable plugin.

Workarounds

Disable and remove the Product Rearrange for WooCommerce plugin until a security patch is available
Implement WAF rules to filter SQL injection payloads targeting the plugin's endpoints
Restrict access to WordPress admin areas via IP whitelisting or VPN requirements
Consider alternative product management plugins that have undergone security audits

bash

# Disable vulnerable plugin via WP-CLI
wp plugin deactivate products-rearrange-woocommerce --path=/var/www/html/wordpress

# Remove the plugin entirely if not needed
wp plugin delete products-rearrange-woocommerce --path=/var/www/html/wordpress

# Check for other potentially vulnerable plugins
wp plugin list --status=active --path=/var/www/html/wordpress