CVE-2025-49034: FunnelKit Funnel Builder SQLi Vulnerability

CVE-2025-49034 Overview

CVE-2025-49034 is a SQL Injection vulnerability in the Funnel Builder by FunnelKit WordPress plugin developed by Aman. The flaw stems from improper neutralization of special elements used in an SQL command [CWE-89]. It affects all versions of Funnel Builder by FunnelKit up to and including 3.10.2. An authenticated attacker with high privileges can inject crafted SQL statements through vulnerable plugin parameters. Successful exploitation allows the attacker to read sensitive database content and partially impact site availability. The vulnerability is network-exploitable and does not require user interaction.

Critical Impact
Authenticated attackers can manipulate backend SQL queries to extract confidential WordPress database records and disrupt funnel-related functionality on affected sites.

Affected Products

Funnel Builder by FunnelKit plugin for WordPress
All versions from initial release through 3.10.2
WordPress sites using FunnelKit funnel-builder components

Discovery Timeline

2025-07-16 - CVE-2025-49034 published to NVD
2026-04-23 - Last updated in NVD database

Technical Details for CVE-2025-49034

Vulnerability Analysis

The vulnerability resides in the Funnel Builder by FunnelKit plugin, which provides WordPress sales funnel and checkout optimization features. The plugin fails to properly sanitize user-supplied input before incorporating it into SQL queries. An attacker holding a high-privileged account on the WordPress instance can submit crafted parameters that alter the structure of backend SQL statements. This results in unauthorized database read access and limited availability impact on plugin-driven functionality. The scope of the issue extends beyond the vulnerable component, meaning impact can affect resources managed by other security authorities within the WordPress environment.

Root Cause

The root cause is improper neutralization of special elements in SQL commands [CWE-89]. The plugin concatenates untrusted input into database queries without using prepared statements or adequate escaping through WordPress functions such as $wpdb->prepare(). This allows SQL metacharacters to escape their intended data context and become part of the executed query.

Attack Vector

Exploitation is conducted over the network against a WordPress site running a vulnerable version of the plugin. The attacker must first obtain high-privileged credentials, such as an administrator or equivalent role with access to plugin-managed endpoints. The attacker then submits malicious payloads to plugin parameters that flow into SQL queries. No user interaction is required for the attack to succeed.

No verified public proof-of-concept code is available. Refer to the Patchstack SQL Injection Advisory for additional technical details.

Detection Methods for CVE-2025-49034

Indicators of Compromise

Unexpected SQL syntax such as UNION SELECT, SLEEP(, or INFORMATION_SCHEMA in WordPress access logs targeting FunnelKit endpoints
Anomalous query patterns or errors recorded in MySQL/MariaDB logs originating from the wp_ schema during plugin operations
Administrative account activity from unusual IP addresses interacting with /wp-admin/admin-ajax.php or FunnelKit-specific routes
Unexplained spikes in database query duration for funnel-related tables

Detection Strategies

Inspect HTTP request payloads to plugin endpoints for SQL metacharacters such as single quotes, comments (--, #), and stacked queries
Enable MySQL general query logging temporarily and search for malformed or unexpected queries referencing FunnelKit tables
Deploy a Web Application Firewall ruleset that flags SQL injection signatures against WordPress admin routes
Compare authenticated administrator session activity against baseline behavior to identify abuse of valid credentials

Monitoring Recommendations

Forward WordPress access logs, audit logs, and database error logs to a centralized SIEM for correlation
Alert on any modification of database tables or schemas performed outside of scheduled plugin update windows
Track plugin version inventory across all WordPress installations to identify hosts still running 3.10.2 or earlier
Monitor administrator account creation, role changes, and privilege escalation events

How to Mitigate CVE-2025-49034

Immediate Actions Required

Update Funnel Builder by FunnelKit to a version later than 3.10.2 as soon as the vendor publishes a fixed release
Audit the WordPress user list and revoke unnecessary high-privileged accounts that could be used to exploit this issue
Rotate credentials for all administrator accounts and enforce multi-factor authentication
Review database contents and recent admin activity for signs of unauthorized access or extraction

Patch Information

The vulnerability affects Funnel Builder by FunnelKit versions through 3.10.2. Site administrators should consult the Patchstack SQL Injection Advisory and the vendor's release notes to confirm the patched version, then update through the WordPress plugin manager.

Workarounds

Deactivate the Funnel Builder by FunnelKit plugin until a patched version is installed if business operations allow
Restrict access to /wp-admin/ using IP allow-listing at the web server or reverse proxy layer
Deploy a virtual patch via a WAF rule that blocks SQL injection payloads targeting FunnelKit endpoints
Apply the principle of least privilege by limiting administrator role assignments to essential personnel only

bash

# Example WordPress CLI commands to inventory and update the plugin
wp plugin list --name=funnel-builder --fields=name,status,version
wp plugin update funnel-builder
wp user list --role=administrator --fields=ID,user_login,user_email,user_registered