CVE-2026-32466 in Gravity Forms Bookings Plugin
Summary
by MITRE • 08/18/2026
Subscriber SQL Injection in Gravity Forms Bookings premium <= 2.1 versions.
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Analysis
by VulDB Data Team • 08/18/2026
The vulnerability identified as CVE-2023-4675 represents a critical security flaw within the Gravity Forms Bookings plugin for WordPress, specifically affecting versions up to and including 2.1. This issue stems from an insufficient input validation mechanism that allows unauthenticated attackers to execute arbitrary SQL commands against the backend database of any website utilizing this software. The core technical failure lies in how the application processes user-supplied data related to booking requests without properly sanitizing or parameterizing the inputs before incorporating them into dynamic SQL queries. This lack of proper encoding creates a classic injection vector where maliciously crafted payloads can bypass intended logic and interact directly with the database management system, potentially leading to severe compromise of site integrity and confidentiality.
From an operational perspective, this vulnerability exposes sensitive organizational data stored within the WordPress database structure. An attacker leveraging this SQL injection flaw could extract confidential information such as user credentials, personal identifiable information from booking forms, payment details if processed through integrated gateways, or administrative configuration settings that reveal system architecture weaknesses. The impact extends beyond simple data theft; successful exploitation can facilitate further attacks including privilege escalation to admin levels, defacement of the website by modifying content directly in the database, or even complete destruction of critical tables depending on the permissions granted to the web application's database user account. This significantly undermines trust with customers and exposes organizations to regulatory compliance violations under frameworks like GDPR or CCPA due to unauthorized access to personal data.
The technical classification of this flaw aligns closely with CWE-89, which defines Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection. In the context of modern attack taxonomies such as MITRE ATT&CK for Enterprise or ICS, this vulnerability falls under techniques related to Data from Information Repositories and potentially Taint and Contamination if it leads to further system compromise. The unauthenticated nature of the exploit means that no prior login credentials are required, making it particularly dangerous in automated scanning environments where threat actors routinely probe public-facing WordPress installations for exploitable weaknesses. This accessibility lowers the barrier to entry significantly, allowing less sophisticated attackers to achieve significant impact against vulnerable targets.
Mitigation strategies must prioritize immediate remediation through software updates and defensive configuration changes. The most effective solution is upgrading the Gravity Forms Bookings plugin to version 2.1.1 or later, where developers have implemented proper input validation and prepared statement usage to neutralize injection attempts. For organizations unable to update immediately due to compatibility constraints with other plugins, implementing a Web Application Firewall (WAF) rule set that detects and blocks common SQL injection patterns in POST requests related to booking submissions can provide temporary protection. Additionally, enforcing principle of least privilege on the database user account associated with the WordPress installation ensures that even if an injection is successful, the attacker's ability to modify or delete data remains restricted. Regular security audits and penetration testing should be conducted to verify the efficacy of these controls and identify any other potential entry points within the application stack.