CVE-2025-39496: WooBeWoo Product Filter Pro SQL Injection

CVE-2025-39496 Overview

CVE-2025-39496 is a critical SQL Injection vulnerability affecting the WooBeWoo Product Filter Pro plugin for WordPress. The vulnerability stems from improper neutralization of special elements used in SQL commands, allowing unauthenticated attackers to inject malicious SQL queries through network-accessible vectors. This flaw enables attackers to extract sensitive data from WordPress databases, potentially compromising customer information, administrative credentials, and other confidential data stored within WooCommerce installations.

Critical Impact

Unauthenticated SQL injection allowing complete database compromise, including extraction of sensitive customer data, administrative credentials, and potential site takeover.

Affected Products

• WooBeWoo Product Filter Pro versions prior to 2.9.6
• WordPress installations running vulnerable versions of the plugin
• WooCommerce stores utilizing the affected product filtering functionality

Discovery Timeline

• 2025-08-28 - CVE CVE-2025-39496 published to NVD
• 2025-08-29 - Last updated in NVD database

Technical Details for CVE-2025-39496

Vulnerability Analysis

This SQL Injection vulnerability exists within the WooBeWoo Product Filter Pro plugin, a popular WooCommerce extension used for product filtering on e-commerce sites. The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), indicating that user-supplied input is incorporated into SQL queries without proper sanitization or parameterization.

The attack can be executed remotely over the network without requiring authentication or user interaction. Successful exploitation allows attackers to bypass application security controls and directly interact with the underlying WordPress database. The scope of this vulnerability extends beyond the vulnerable component itself, potentially impacting the confidentiality of the entire WordPress installation.

Root Cause

The root cause of this vulnerability is the failure to properly sanitize, validate, or parameterize user-controlled input before incorporating it into SQL queries. The plugin's product filtering functionality accepts input that is directly concatenated into database queries rather than using prepared statements or proper escaping mechanisms. This allows attackers to manipulate the SQL query structure by injecting malicious SQL syntax through filter parameters.

Attack Vector

The vulnerability is exploitable via network-based attacks targeting the product filter functionality. Attackers can craft malicious requests containing SQL injection payloads within filter parameters. Since no authentication is required and no user interaction is needed, automated exploitation tools can be used to systematically extract database contents.

The attack methodology typically involves:

1. Identifying vulnerable filter parameters that interact with the database
2. Injecting SQL syntax to test for injection points (e.g., single quotes, boolean-based tests)
3. Using UNION-based, error-based, or blind SQL injection techniques to extract data
4. Escalating access by retrieving WordPress administrative credentials from the wp_users table

For detailed technical information, refer to the Patchstack SQL Injection Advisory.

Detection Methods for CVE-2025-39496

Indicators of Compromise

• Unusual or malformed requests to product filter endpoints containing SQL syntax characters (single quotes, UNION, SELECT, etc.)
• Database error messages appearing in web server logs or application responses
• Unexpected database queries accessing sensitive tables such as wp_users or wp_options
• Anomalous outbound data transfers from the web server

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect SQL injection patterns in HTTP requests
• Monitor WordPress and web server access logs for suspicious filter parameter values containing SQL keywords
• Deploy database activity monitoring to identify queries accessing multiple tables or extracting large datasets
• Enable WordPress debug logging temporarily to identify unusual database query patterns

Monitoring Recommendations

• Configure real-time alerting for SQL injection signatures in web traffic
• Establish baseline database query patterns and alert on deviations
• Monitor for bulk data extraction attempts through database audit logs
• Review server access logs for reconnaissance activity targeting filter endpoints

How to Mitigate CVE-2025-39496

Immediate Actions Required

• Update WooBeWoo Product Filter Pro to version 2.9.6 or later immediately
• If immediate patching is not possible, temporarily disable the WooBeWoo Product Filter Pro plugin
• Review database access logs for evidence of exploitation
• Consider resetting all administrative passwords if compromise is suspected

Patch Information

The vulnerability has been addressed in WooBeWoo Product Filter Pro version 2.9.6. Site administrators should update to this version or later through the WordPress admin dashboard or by downloading the latest version from the vendor. After updating, verify the plugin version by navigating to Plugins > Installed Plugins in the WordPress admin area.

For additional details and patch information, consult the Patchstack SQL Injection Advisory.

Workarounds

• Temporarily deactivate the WooBeWoo Product Filter Pro plugin until patching is complete
• Implement WAF rules to block requests containing SQL injection patterns to filter endpoints
• Restrict access to WordPress admin and filter endpoints via IP allowlisting where feasible
• Enable WordPress maintenance mode to limit site exposure during the patching window

# Temporarily disable the plugin via WP-CLI
wp plugin deactivate woofilter-pro

# After updating, reactivate the plugin
wp plugin activate woofilter-pro

# Verify the updated version
wp plugin list --name=woofilter-pro --fields=name,version,status