CVE-2025-31397: Bus Ticket Booking WooCommerce SQLi

CVE-2025-31397 Overview

CVE-2025-31397 is a critical SQL Injection vulnerability affecting the Bus Ticket Booking with Seat Reservation for WooCommerce WordPress plugin developed by smartcms. The vulnerability exists due to improper neutralization of special elements used in SQL commands, allowing attackers to inject malicious SQL queries through the plugin's functionality.

This SQL Injection flaw enables unauthenticated attackers to interact directly with the WordPress database, potentially extracting sensitive customer data, booking information, payment details, and administrative credentials. Given the plugin's integration with WooCommerce for e-commerce functionality, exploitation could have severe consequences for businesses relying on this solution for bus ticket sales.

Critical Impact

Unauthenticated attackers can exploit this SQL Injection vulnerability to extract sensitive database contents including customer information, payment data, and administrative credentials from affected WordPress sites.

Affected Products

• Bus Ticket Booking with Seat Reservation for WooCommerce plugin versions up to and including 1.7
• WordPress sites using the scw-bus-seat-reservation plugin
• WooCommerce-integrated bus booking systems using the vulnerable plugin

Discovery Timeline

• 2025-05-23 - CVE-2025-31397 published to NVD
• 2025-05-23 - Last updated in NVD database

Technical Details for CVE-2025-31397

Vulnerability Analysis

This vulnerability is classified as CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'). The flaw stems from the plugin's failure to properly sanitize user-supplied input before incorporating it into SQL queries executed against the WordPress database.

The vulnerability can be exploited remotely over the network without requiring authentication or user interaction. Successful exploitation allows attackers to bypass application security measures and directly query the underlying database. The scope of impact extends beyond the vulnerable component itself, potentially affecting the confidentiality of the entire WordPress installation and its associated WooCommerce data.

Attackers exploiting this vulnerability could extract sensitive information including customer personal data, booking records, seat reservation details, and potentially WooCommerce order information including payment-related data. Additionally, the vulnerability could enable modification or deletion of database records, leading to service disruption.

Root Cause

The root cause of CVE-2025-31397 is insufficient input validation and sanitization within the Bus Ticket Booking with Seat Reservation plugin. User-controlled input is directly concatenated or interpolated into SQL query strings without proper escaping, parameterization, or use of WordPress's prepared statement functions.

WordPress provides the $wpdb->prepare() method specifically to prevent SQL injection by properly escaping parameters, but this vulnerable plugin fails to utilize these security mechanisms for certain database operations.

Attack Vector

The attack vector for this SQL Injection vulnerability is network-based, requiring no authentication or special privileges. An attacker can craft malicious HTTP requests containing SQL injection payloads targeting the vulnerable plugin endpoints.

Typical exploitation involves manipulating input parameters processed by the plugin's booking or seat reservation functionality. The attacker injects SQL syntax that alters the intended query logic, enabling unauthorized data extraction through techniques such as UNION-based injection, error-based injection, or blind SQL injection methods.

For detailed technical analysis and proof-of-concept information, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-31397

Indicators of Compromise

• Unusual database query patterns in WordPress/MySQL logs containing SQL injection payloads such as UNION SELECT, OR 1=1, or '-- syntax
• Unexpected spikes in database activity or errors related to the scw-bus-seat-reservation plugin
• Web server access logs showing requests with encoded SQL characters (%27, %22, %3D) targeting bus booking endpoints
• Evidence of data exfiltration attempts in network traffic logs

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns targeting WordPress plugin endpoints
• Monitor WordPress database logs for anomalous query execution patterns and SQL syntax errors
• Deploy intrusion detection signatures for common SQL injection payloads in HTTP request parameters
• Utilize WordPress security plugins to scan for known vulnerable plugin versions

Monitoring Recommendations

• Enable comprehensive logging for all WordPress plugin activity and database queries
• Configure real-time alerting for SQL error messages and suspicious query patterns
• Monitor file integrity of WordPress core and plugin files for unauthorized modifications
• Track changes to WordPress user accounts and privilege levels that could indicate post-exploitation activity

How to Mitigate CVE-2025-31397

Immediate Actions Required

• Identify all WordPress installations using the Bus Ticket Booking with Seat Reservation for WooCommerce plugin version 1.7 or earlier
• Apply the latest security update from the plugin vendor as soon as available
• Implement WAF rules to block SQL injection attempts while awaiting patch deployment
• Consider temporarily disabling the plugin if it is not critical to business operations

Patch Information

Organizations should monitor the official plugin repository and the Patchstack vulnerability database for patch availability. Update the plugin to a version newer than 1.7 once a security fix is released by smartcms.

Ensure WordPress core and WooCommerce are also updated to their latest versions to benefit from additional security hardening.

Workarounds

• Deploy a Web Application Firewall (WAF) with SQL injection detection rules to filter malicious requests
• Restrict access to the plugin's functionality by implementing IP-based access controls where feasible
• Use WordPress security plugins such as Wordfence or Sucuri to add an additional layer of SQL injection protection
• Consider database-level restrictions to limit the WordPress database user's privileges to the minimum required

# Configuration example - WordPress WAF plugin setup
# Install and activate a security plugin via WP-CLI
wp plugin install wordfence --activate

# Alternatively, add basic SQL injection filtering in .htaccess
# Note: This provides limited protection and should not replace patching
# Add to WordPress root .htaccess file:
# <IfModule mod_rewrite.c>
#   RewriteCond %{QUERY_STRING} [^a-z](union|select|insert|drop|delete|update|concat|benchmark)[^a-z] [NC]
#   RewriteRule .* - [F,L]
# </IfModule>