CVE-2024-6770 in Lifetime Free Drag & Drop Contact Form Builder for VForm Plugin
Summary
by MITRE • 07/31/2024
The Lifetime free Drag & Drop Contact Form Builder for WordPress VForm plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.1.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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Analysis
by VulDB Data Team • 03/16/2025
The vulnerability identified as CVE-2024-6770 affects the VForm plugin for WordPress, specifically targeting versions up to and including 2.1.5. This plugin provides a drag-and-drop contact form builder functionality that is widely used across WordPress installations. The security flaw manifests as a stored cross-site scripting vulnerability that can be exploited by unauthenticated attackers without requiring any user interaction beyond accessing a compromised page. The vulnerability exists within the plugin's handling of user input data, particularly in how it processes form field configurations and stored form data.
The technical root cause of this vulnerability stems from inadequate input sanitization and output escaping mechanisms within the plugin's codebase. When users create or modify contact forms through the drag-and-drop interface, the plugin stores form configurations in the WordPress database. However, the plugin fails to properly sanitize or escape user-provided data before storing it, allowing malicious scripts to be persisted in the database. When administrators or other users access pages containing these stored forms, the malicious code executes in their browsers, creating a persistent threat that can affect anyone who views the compromised pages.
This vulnerability operates under the Common Weakness Enumeration framework as CWE-79, which specifically addresses Cross-Site Scripting flaws in web applications. The weakness occurs because the plugin does not adequately validate or escape user input before rendering it in web pages, creating an environment where attacker-controlled data can be executed as scripts. The stored nature of this vulnerability means that once malicious code is injected, it remains persistent and will execute every time affected pages are accessed, making it particularly dangerous for administrators who frequently view form management interfaces.
The operational impact of CVE-2024-6770 extends beyond simple script execution, as it can enable attackers to perform various malicious activities. Unauthenticated attackers can inject scripts that steal cookies, redirect users to malicious sites, or even execute commands on behalf of the compromised WordPress installation. The vulnerability affects all users of the plugin regardless of their authentication status, making it particularly concerning for WordPress sites that do not restrict access to form management interfaces. Administrators who view compromised pages become potential victims of session hijacking, credential theft, or other browser-based attacks that can compromise the entire WordPress installation.
Mitigation strategies for this vulnerability should prioritize immediate remediation through plugin updates to versions that address the stored XSS flaw. Organizations should implement comprehensive input validation and output escaping measures for all user-provided data within the plugin's functionality. The WordPress security community recommends that administrators monitor plugin repositories for updates and apply patches promptly. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against script execution, though this should not replace proper input sanitization. Security monitoring should include regular scanning of database content for suspicious script injections, particularly in areas where user-generated content is stored. The ATT&CK framework categorizes this vulnerability under T1059.007 for Scripting and T1566.001 for Phishing, as attackers can leverage the vulnerability to deliver malicious payloads through compromised form interfaces and then execute scripts in user browsers.