CVE-2024-5057: Easy Digital Downloads SQLi Vulnerability

CVE-2024-5057 Overview

CVE-2024-5057 is a critical SQL Injection vulnerability affecting the Easy Digital Downloads WordPress plugin developed by Awesome Motive. This vulnerability arises from improper neutralization of special elements used in SQL commands, allowing unauthenticated attackers to inject malicious SQL queries through the plugin's functionality. Easy Digital Downloads is a popular e-commerce solution for selling digital products on WordPress, making this vulnerability particularly concerning due to its widespread use and the sensitive customer and transaction data it handles.

Critical Impact

Unauthenticated attackers can exploit this SQL Injection vulnerability to extract sensitive database contents, modify or delete data, and potentially achieve full database compromise on affected WordPress installations running Easy Digital Downloads versions up to and including 3.2.12.

Affected Products

• Easy Digital Downloads WordPress plugin versions through 3.2.12
• WordPress installations using vulnerable Easy Digital Downloads versions
• E-commerce sites built on Easy Digital Downloads platform

Discovery Timeline

• 2024-08-29 - CVE-2024-5057 published to NVD
• 2025-02-07 - Last updated in NVD database

Technical Details for CVE-2024-5057

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists in Easy Digital Downloads plugin for WordPress due to inadequate input validation and sanitization. The vulnerability allows attackers to manipulate SQL queries executed by the application through specially crafted input. Because the vulnerability can be exploited over the network without requiring authentication or user interaction, it presents a severe risk to affected systems. Successful exploitation could lead to unauthorized access to the entire WordPress database, including customer information, payment records, user credentials, and administrative data stored within the affected installation.

Root Cause

The root cause of CVE-2024-5057 is the failure to properly sanitize and escape user-supplied input before incorporating it into SQL queries. The Easy Digital Downloads plugin does not adequately validate special characters and SQL metacharacters in user input, allowing attackers to break out of intended query structures and inject arbitrary SQL commands. This represents a fundamental failure in implementing secure database interaction patterns.

Attack Vector

The attack vector for this vulnerability is network-based, requiring no authentication or user interaction. An attacker can craft malicious HTTP requests containing SQL injection payloads directed at vulnerable endpoints within the Easy Digital Downloads plugin. The injected SQL commands are then executed by the database server with the privileges of the WordPress database user, potentially allowing complete database compromise.

The vulnerability can be exploited through specially crafted input parameters that bypass the plugin's input filtering mechanisms. When processed by vulnerable code paths, these payloads allow attackers to execute arbitrary SQL statements against the WordPress database. For detailed technical information about the vulnerability mechanism, refer to the Patchstack Vulnerability Advisory.

Detection Methods for CVE-2024-5057

Indicators of Compromise

• Unusual database queries in MySQL/MariaDB logs containing SQL metacharacters such as UNION, SELECT, --, or '
• Unexpected error messages in WordPress or Easy Digital Downloads logs indicating SQL syntax errors
• Database access logs showing queries outside normal application behavior
• Evidence of data exfiltration or unauthorized database modifications

Detection Strategies

• Deploy a Web Application Firewall (WAF) with SQL injection detection rules to monitor and block malicious requests targeting Easy Digital Downloads endpoints
• Enable and review WordPress database query logging to identify anomalous SQL patterns
• Implement intrusion detection signatures for common SQL injection payloads targeting WordPress plugins
• Monitor HTTP access logs for requests containing URL-encoded SQL metacharacters

Monitoring Recommendations

• Configure real-time alerts for SQL error patterns in application and database logs
• Establish baseline metrics for database query patterns and alert on deviations
• Implement file integrity monitoring on Easy Digital Downloads plugin files to detect unauthorized modifications
• Review WordPress user account activity for signs of unauthorized access or privilege escalation

How to Mitigate CVE-2024-5057

Immediate Actions Required

• Update Easy Digital Downloads plugin to a version newer than 3.2.12 immediately
• Review WordPress database logs for signs of exploitation attempts
• Audit WordPress user accounts for unauthorized administrative access
• Consider temporarily disabling the Easy Digital Downloads plugin if immediate updates are not possible

Patch Information

Organizations running Easy Digital Downloads versions through 3.2.12 should upgrade to the latest available version immediately. The patch addresses the SQL injection vulnerability by implementing proper input sanitization and parameterized queries. For specific patch details and the latest secure version, consult the Patchstack Vulnerability Advisory and the official Easy Digital Downloads changelog.

Workarounds

• Deploy a Web Application Firewall (WAF) with SQL injection protection rules as a temporary mitigation layer
• Restrict access to WordPress administrative and plugin endpoints via IP whitelisting where feasible
• Implement additional database access controls to limit the WordPress database user's privileges
• Enable WordPress debug logging to capture and analyze potentially malicious requests

# WordPress database privilege hardening (example)
# Restrict WordPress database user permissions to minimum required
REVOKE ALL PRIVILEGES ON wordpress_db.* FROM 'wp_user'@'localhost';
GRANT SELECT, INSERT, UPDATE, DELETE ON wordpress_db.* TO 'wp_user'@'localhost';
FLUSH PRIVILEGES;