CVE-2026-16810 in Bit Form Plugin
Summary
by MITRE • 08/14/2026
The Bit Form – Contact Form, Payment Forms, Multi Step Forms, Calculator & Custom Form Builder plugin for WordPress is vulnerable to generic SQL Injection via the 'data[queryCondition]' parameter in all versions up to, and including, 3.2.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
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Analysis
by VulDB Data Team • 08/14/2026
The Bit Form plugin for WordPress represents a comprehensive form building solution that enables users to create contact forms, payment forms, multi-step workflows, calculators, and custom form builders. This plugin has been widely adopted across WordPress installations due to its versatile functionality and user-friendly interface. However, security researchers have identified a critical vulnerability that affects all versions up to and including 3.2.0, creating a significant risk for WordPress sites that utilize this plugin. The vulnerability manifests as a generic SQL injection flaw within the plugin's data handling mechanisms.
The technical flaw resides in the improper handling of user-supplied input through the 'data[queryCondition]' parameter, which is processed without adequate escaping or sanitization measures. This parameter is specifically designed to handle query conditions for form data processing and database interactions. The vulnerability stems from insufficient preparation of SQL queries within the plugin's backend code, where the developer fails to implement proper parameter binding or input validation before incorporating user data into database operations. This creates a direct pathway for malicious actors to inject additional SQL commands into existing queries through crafted input values.
The operational impact of this vulnerability is severe and directly relates to the privilege escalation required to exploit it. Attackers must already possess administrator-level access or higher within the WordPress installation, which significantly limits the scope of potential exploitation but does not eliminate the risk entirely. Once authenticated with administrative privileges, an attacker can manipulate the 'data[queryCondition]' parameter to append malicious SQL statements that can extract sensitive information from the database. This includes potentially accessing user credentials, personal data, plugin configurations, and other critical system information that could be leveraged for further attacks or compromise of the entire WordPress installation.
The vulnerability aligns with CWE-89 which specifically addresses SQL injection flaws in software applications, particularly those involving insufficient escaping of user-supplied input. From an adversarial perspective, this weakness maps directly to ATT&CK technique T1078 which covers valid accounts and privilege escalation tactics. The attack surface is further expanded by the fact that many WordPress administrators may not be fully aware of the specific parameters that are vulnerable within third-party plugins, making this a particularly insidious threat. The SQL injection vulnerability allows for data extraction without requiring additional exploitation techniques, as the existing administrative access provides sufficient privileges to manipulate database queries effectively.
Organizations using the Bit Form plugin should immediately implement mitigations including upgrading to versions beyond 3.2.0 where the vulnerability has been patched, implementing network-level restrictions to limit access to administrative functions, and conducting thorough security audits of all installed plugins. Additionally, administrators should consider implementing database query monitoring tools that can detect anomalous SQL patterns and establish automated patch management processes for WordPress plugins. The vulnerability demonstrates the critical importance of input validation and parameterized queries in preventing SQL injection attacks, particularly when dealing with user-supplied data in administrative interfaces. Regular security assessments and adherence to secure coding practices, including proper escaping and prepared statement usage, are essential for protecting WordPress installations from similar vulnerabilities.