CVE-2024-25928: Sitepact CF7 Klaviyo Extension SQLi Flaw

CVE-2024-25928 Overview

CVE-2024-25928 is a critical SQL Injection vulnerability discovered in the Sitepact Contact Form 7 Extension for Klaviyo WordPress plugin. The vulnerability stems from improper neutralization of special elements used in SQL commands (CWE-89), allowing attackers to manipulate database queries through malicious input. This issue affects all versions of the plugin from the initial release through version 1.0.5.

SQL Injection vulnerabilities in WordPress plugins are particularly dangerous as they can lead to complete database compromise, allowing attackers to extract sensitive information, modify data, or potentially gain administrative access to the WordPress installation.

Critical Impact

This SQL Injection vulnerability allows unauthenticated remote attackers to execute arbitrary SQL commands against the WordPress database, potentially leading to complete data compromise, unauthorized access, and website takeover.

Affected Products

• Sitepact Contact Form 7 Extension for Klaviyo versions up to and including 1.0.5
• WordPress installations using the vulnerable plugin
• Any website utilizing Contact Form 7 with this Klaviyo integration

Discovery Timeline

• 2024-02-23 - CVE-2024-25928 published to NVD
• 2025-02-25 - Last updated in NVD database

Technical Details for CVE-2024-25928

Vulnerability Analysis

This SQL Injection vulnerability exists within the Sitepact Contact Form 7 Extension for Klaviyo plugin, which integrates Contact Form 7 submissions with the Klaviyo email marketing platform. The vulnerability occurs due to insufficient input validation and sanitization of user-supplied data before it is incorporated into SQL queries.

The attack can be executed remotely over the network without requiring authentication or user interaction, making it highly exploitable. Successful exploitation grants attackers the ability to read, modify, or delete database contents, potentially compromising confidentiality, integrity, and availability of the entire WordPress installation.

Root Cause

The root cause of this vulnerability is the failure to properly sanitize and parameterize user input before constructing SQL queries. When user-supplied data is directly concatenated into SQL statements without proper escaping or the use of prepared statements, attackers can inject malicious SQL code that the database will execute as legitimate commands.

In WordPress plugin development, this typically occurs when developers use functions like $wpdb->query() or $wpdb->get_results() with string concatenation instead of properly using $wpdb->prepare() with placeholders for user input.

Attack Vector

The attack vector for CVE-2024-25928 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. The vulnerability may be triggered through form submissions or other user-controllable parameters that interact with the database.

The attack does not require user interaction, meaning it can be automated and executed at scale against vulnerable WordPress installations. Exploitation could result in unauthorized data extraction (such as user credentials and personal information), data modification, or complete database destruction.

Since no verified code examples are available for this vulnerability, detailed technical analysis should be obtained from the Patchstack Vulnerability Database Entry which contains additional technical details about the exploitation mechanism.

Detection Methods for CVE-2024-25928

Indicators of Compromise

• Unusual database queries in WordPress debug logs containing SQL syntax errors or unexpected commands
• Unexpected changes to WordPress database tables, particularly wp_users or wp_options
• Web server access logs showing requests with SQL injection patterns targeting plugin endpoints
• Unexplained new administrator accounts or modified user privileges

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection payloads in HTTP requests
• Monitor WordPress database activity for anomalous query patterns, especially those containing UNION SELECT, OR 1=1, or comment sequences (--, /*)
• Implement file integrity monitoring to detect unauthorized changes to WordPress core files or plugin files
• Review web server logs for requests containing URL-encoded SQL characters targeting the Sitepact plugin directory

Monitoring Recommendations

• Enable WordPress debug logging and regularly review for database-related errors
• Configure real-time alerts for database queries originating from web application context that match SQL injection signatures
• Monitor network traffic for data exfiltration patterns that may indicate successful exploitation
• Implement SentinelOne's Singularity platform to provide endpoint detection and response for web servers hosting WordPress

How to Mitigate CVE-2024-25928

Immediate Actions Required

• Immediately deactivate and remove the Sitepact Contact Form 7 Extension for Klaviyo plugin version 1.0.5 or earlier
• Audit WordPress user accounts for unauthorized additions or privilege escalations
• Review database contents for signs of tampering or data exfiltration
• Implement a Web Application Firewall with SQL injection protection rules as a temporary mitigation

Patch Information

At the time of this advisory, users should check the WordPress plugin repository and the Patchstack vulnerability database for updated versions that address this vulnerability. If no patched version is available, consider using an alternative Klaviyo integration solution.

Workarounds

• Disable the vulnerable plugin until a security patch is released by the vendor
• Implement server-level SQL injection filtering using ModSecurity or similar WAF solutions
• Restrict access to the WordPress admin panel and plugin endpoints through IP whitelisting where feasible
• Consider using prepared statements at the server configuration level if direct plugin modification is possible

# ModSecurity rule to block common SQL injection patterns
SecRule ARGS "@detectSQLi" "id:1001,phase:2,deny,status:403,log,msg:'SQL Injection Attempt Detected'"

# Disable plugin via WP-CLI if immediate action is required
wp plugin deactivate sitepact-klaviyo-contact-form-7 --path=/var/www/html/wordpress