CVE-2024-1981: WPvivid WordPress Plugin SQLi Vulnerability

CVE-2024-1981 Overview

CVE-2024-1981 is a critical SQL Injection vulnerability affecting the WPvivid Migration, Backup, Staging plugin for WordPress. The vulnerability exists in version 0.9.68 due to insufficient escaping on the user-supplied table_prefix parameter and a lack of sufficient preparation on existing SQL queries. This flaw enables unauthenticated attackers to append additional SQL queries into already existing queries, which can be leveraged to extract sensitive information from the WordPress database.

Critical Impact

Unauthenticated attackers can exploit this SQL Injection vulnerability to extract sensitive data from the WordPress database, potentially compromising user credentials, personal information, and site configuration without requiring any authentication.

Affected Products

• WPvivid Migration, Backup, Staging plugin for WordPress version 0.9.68
• WordPress installations running vulnerable WPvivid plugin versions
• Sites using WPvivid backup and migration functionality with exposed endpoints

Discovery Timeline

• 2024-02-29 - CVE-2024-1981 published to NVD
• 2025-01-16 - Last updated in NVD database

Technical Details for CVE-2024-1981

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) resides in the WPvivid Migration, Backup, Staging plugin's handling of the table_prefix parameter. The plugin fails to properly sanitize and escape user-supplied input before incorporating it into SQL queries. Without prepared statements or adequate input validation, the application directly concatenates user input into database queries, creating an injection point that attackers can exploit.

The vulnerability is particularly severe because it can be exploited by unauthenticated users, meaning no login credentials are required to launch an attack. Successful exploitation allows attackers to manipulate database queries to extract confidential data including WordPress user credentials, email addresses, post content, plugin configurations, and other sensitive information stored in the database.

Root Cause

The root cause of CVE-2024-1981 is inadequate input validation and improper SQL query construction in the WPvivid plugin. Specifically, the table_prefix parameter is incorporated into SQL queries without proper escaping or the use of parameterized queries (prepared statements). WordPress provides built-in functions like $wpdb->prepare() for safe query construction, but these safeguards were not implemented for this particular parameter, leaving the application vulnerable to SQL Injection attacks.

Attack Vector

The attack vector for this vulnerability is network-based, allowing remote unauthenticated attackers to exploit the flaw. An attacker can craft malicious HTTP requests containing SQL injection payloads in the table_prefix parameter. These payloads are designed to manipulate the underlying SQL query structure, enabling attackers to:

1. Bypass query boundaries using SQL syntax characters
2. Inject UNION-based queries to retrieve data from other database tables
3. Use time-based or error-based blind SQL injection techniques for data extraction
4. Potentially escalate to more severe attacks depending on database permissions

The attack does not require user interaction, making automated exploitation feasible. For detailed technical analysis, refer to the HiSolutions Vulnerability Research report and the Wordfence Vulnerability Report.

Detection Methods for CVE-2024-1981

Indicators of Compromise

• Unusual database query patterns or errors in WordPress logs indicating SQL syntax anomalies
• Unexpected access to WPvivid plugin endpoints from unknown IP addresses
• Database access logs showing queries with suspicious table_prefix values containing SQL metacharacters
• Web server logs containing requests with encoded SQL injection payloads targeting WPvivid endpoints

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the table_prefix parameter
• Monitor WordPress access logs for suspicious requests targeting /wp-admin/admin-ajax.php or WPvivid-specific endpoints
• Deploy database activity monitoring to identify anomalous query patterns indicative of SQL injection attempts
• Use intrusion detection systems (IDS) with signatures for common SQL injection attack patterns

Monitoring Recommendations

• Enable detailed logging for WordPress and the WPvivid plugin to capture all parameter values in requests
• Configure alerting for failed or malformed database queries originating from web application contexts
• Regularly audit database access patterns and correlate with web request logs to identify potential exploitation attempts
• Monitor for data exfiltration indicators such as unusually large response sizes or frequent queries to sensitive tables

How to Mitigate CVE-2024-1981

Immediate Actions Required

• Update the WPvivid Migration, Backup, Staging plugin to the latest patched version immediately
• Review WordPress database for signs of unauthorized access or data extraction
• Temporarily disable the WPvivid plugin if an immediate update is not possible
• Implement WAF rules to filter SQL injection attempts targeting the table_prefix parameter
• Audit user accounts and credentials for any signs of compromise

Patch Information

WPvivid has released a security patch addressing this SQL Injection vulnerability. Administrators should update to the latest version of the plugin through the WordPress plugin repository. The patch implements proper input sanitization and prepared statements for the affected parameter. Technical details of the fix can be reviewed in the WordPress Plugin Changeset.

Workarounds

• Deploy a Web Application Firewall (WAF) with SQL injection filtering rules as a temporary protective measure
• Restrict access to WordPress admin-ajax endpoints using IP allowlisting if feasible
• Consider temporarily deactivating the WPvivid plugin until the patch can be applied
• Implement database-level monitoring and access controls to limit potential damage from exploitation

# Configuration example - WordPress .htaccess restriction for WPvivid endpoints
# Add to your WordPress .htaccess file to restrict access while awaiting patch

<IfModule mod_rewrite.c>
RewriteEngine On
# Block suspicious table_prefix parameters
RewriteCond %{QUERY_STRING} table_prefix=.*[\'\";\-\-] [NC]
RewriteRule .* - [F,L]
</IfModule>