CVE-2025-39445: Super Store Finder SQLi Vulnerability

CVE-2025-39445 Overview

A critical SQL Injection vulnerability has been identified in the Super Store Finder WordPress plugin developed by highwarden. This vulnerability allows unauthenticated attackers to inject malicious SQL commands through improper neutralization of special elements in user-supplied input. The flaw affects all versions of the plugin up to and including version 7.2.

Critical Impact

Unauthenticated attackers can exploit this SQL Injection vulnerability to extract sensitive data from the WordPress database, potentially compromising user credentials, personally identifiable information, and other confidential data stored within the application.

Affected Products

• Super Store Finder WordPress Plugin (all versions through 7.2)
• WordPress installations running vulnerable Super Store Finder plugin versions

Discovery Timeline

• 2025-05-19 - CVE-2025-39445 published to NVD
• 2025-05-21 - Last updated in NVD database

Technical Details for CVE-2025-39445

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists due to improper neutralization of special elements used in SQL commands within the Super Store Finder plugin. The vulnerability is network-accessible and requires no authentication or user interaction to exploit, making it particularly dangerous for WordPress sites running the affected plugin.

The flaw enables attackers to manipulate database queries by injecting malicious SQL syntax through user-controllable input fields. When these inputs are concatenated directly into SQL statements without proper sanitization or parameterized queries, the injected code executes within the database context.

Root Cause

The root cause of this vulnerability is insufficient input validation and the absence of prepared statements or parameterized queries in the Super Store Finder plugin's database operations. User-supplied data is being incorporated directly into SQL queries without proper escaping or sanitization, violating secure coding practices for database interactions.

Attack Vector

The attack vector is network-based, allowing remote exploitation without requiring any privileges or authentication. An attacker can craft malicious HTTP requests containing SQL injection payloads targeted at vulnerable plugin endpoints. The scope is changed, meaning successful exploitation can affect resources beyond the vulnerable component, potentially impacting the entire WordPress installation and its database.

The vulnerability primarily enables unauthorized data extraction (high confidentiality impact) and may cause limited disruption to availability. Exploitation techniques may include UNION-based injection, blind SQL injection using time delays or boolean conditions, or error-based injection depending on the specific vulnerable parameter.

Detection Methods for CVE-2025-39445

Indicators of Compromise

• Unusual database query patterns in web server or database logs containing SQL syntax such as UNION SELECT, OR 1=1, or comment sequences (--, /*)
• Unexpected outbound connections from the web server potentially indicating data exfiltration
• Error messages in application logs revealing database structure or SQL syntax errors
• Anomalous access patterns to Super Store Finder plugin endpoints

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in HTTP requests
• Monitor WordPress database query logs for suspicious queries containing injection signatures
• Implement real-time log analysis to alert on SQL injection attack patterns targeting /wp-content/plugins/superstorefinder-wp/ paths
• Use endpoint detection and response (EDR) solutions to identify post-exploitation activity

Monitoring Recommendations

• Enable detailed logging for the Super Store Finder plugin and WordPress database interactions
• Configure alerts for multiple failed requests or error responses from plugin endpoints
• Monitor for unauthorized data access patterns in database audit logs
• Establish baseline traffic patterns to detect anomalous request volumes to affected endpoints

How to Mitigate CVE-2025-39445

Immediate Actions Required

• Immediately audit WordPress installations for the presence of Super Store Finder plugin versions 7.2 or earlier
• Consider temporarily disabling the Super Store Finder plugin until a patched version is available
• Implement WAF rules to block SQL injection attempts targeting affected endpoints
• Review database logs for signs of prior exploitation attempts

Patch Information

Refer to the Patchstack Vulnerability Report for the latest patch information and remediation guidance from the vendor. Organizations should prioritize updating to a patched version as soon as one becomes available from highwarden.

Workarounds

• Deploy a Web Application Firewall with SQL injection detection rules to filter malicious requests
• Restrict access to WordPress admin and plugin endpoints using IP allowlisting where feasible
• Implement database-level controls to limit the permissions of the WordPress database user
• Consider using security plugins that provide virtual patching capabilities for known WordPress plugin vulnerabilities

# Example: Block suspicious SQL injection patterns at the web server level (Apache)
# Add to .htaccess in the WordPress root directory
<IfModule mod_rewrite.c>
RewriteEngine On
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>