CVE-2026-32532 in Contact Form & Lead Form Elementor Builder Plugin
Summary
by MITRE • 03/25/2026
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in ThemeHunk Contact Form & Lead Form Elementor Builder lead-form-builder allows Stored XSS.This issue affects Contact Form & Lead Form Elementor Builder: from n/a through <= 2.0.1.
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Analysis
by VulDB Data Team • 04/01/2026
This vulnerability represents a critical cross-site scripting flaw in the ThemeHunk Contact Form & Lead Form Elementor Builder plugin, specifically impacting versions through 2.0.1. The issue stems from improper input sanitization during web page generation processes, creating an avenue for persistent cross-site scripting attacks. The vulnerability is classified as a stored XSS vulnerability, meaning malicious scripts can be permanently injected into the application's database and subsequently executed whenever affected pages are loaded by unsuspecting users. This particular flaw resides in the lead form builder component of the plugin, which processes user-submitted data through elementor builder interfaces. The vulnerability allows attackers to inject malicious javascript code through contact form fields that are then stored and executed in the context of other users' browsers, making it particularly dangerous for websites that rely on user submissions.
The technical implementation of this vulnerability occurs when user input from contact form fields is not properly sanitized or escaped before being rendered back to users. This failure in input validation creates an environment where malicious actors can submit crafted payloads through form fields that get stored in the database. When legitimate users view pages containing these stored inputs, their browsers execute the malicious scripts within the context of the vulnerable website. The CWE classification for this vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, while the ATT&CK framework categorizes this under T1566.001 - Phishing with Spoofed Delivery, as attackers can leverage this vulnerability to deliver malicious payloads through seemingly legitimate contact forms.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with persistent access to user sessions and potential data exfiltration capabilities. Attackers can leverage stored XSS to steal cookies, session tokens, or other sensitive information from authenticated users, potentially leading to complete account compromises. The vulnerability affects the entire user base that interacts with the contact forms, making it particularly dangerous for websites handling sensitive data or requiring authentication. Additionally, this flaw can be exploited to perform actions on behalf of users, such as modifying form submissions, redirecting users to malicious sites, or even installing malware through browser-based attacks. The persistence of stored XSS makes this vulnerability particularly concerning as the malicious code remains active until manually removed from the database, providing attackers with extended access windows.
Mitigation strategies for this vulnerability should prioritize immediate plugin updates to versions that address the XSS flaw, as this represents the most effective defense mechanism. Organizations should implement comprehensive input validation and output escaping mechanisms to prevent malicious code from being stored or executed within the application. The implementation of Content Security Policy headers can provide additional protection by restricting script execution and preventing unauthorized code injection. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities within web applications, particularly in form handling and user input processing components. Security teams should also consider implementing web application firewalls to monitor and block suspicious input patterns that may indicate XSS attempts. The vulnerability highlights the critical importance of proper input sanitization and output encoding practices in web development, emphasizing the need for security-conscious development practices throughout the software lifecycle to prevent such persistent threats from compromising user security and application integrity.