CVE-2026-2002 in Forminator Forms Plugin
Summary
by MITRE • 02/17/2026
The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form_name parameter in all versions up to, and including, 1.50.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The plugin allows admins to give form management permissions to lower level users, which could make this exploitable by users such as subscribers.
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Analysis
by VulDB Data Team • 02/20/2026
The vulnerability identified as CVE-2026-2002 affects the Forminator Forms plugin for WordPress, specifically targeting versions up to and including 1.50.2. This represents a critical security flaw that exploits stored cross-site scripting vulnerabilities through the form_name parameter, creating a persistent threat vector that can compromise user sessions and execute malicious code within the context of the victim's browser. The vulnerability stems from inadequate input sanitization mechanisms and insufficient output escaping practices within the plugin's codebase, allowing attackers to inject malicious scripts that persist in the database and execute whenever affected pages are accessed. The flaw is particularly concerning because it requires only administrator-level access to exploit, though the plugin's permission structure allows for lower-level users to potentially gain access, expanding the attack surface significantly. This vulnerability directly aligns with CWE-79, which defines Cross-Site Scripting as a weakness where untrusted data is sent to a web browser without proper validation or escaping, enabling attackers to execute scripts in the victim's browser context.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with the ability to manipulate user sessions, steal sensitive information, and potentially escalate privileges within the WordPress environment. When authenticated administrators or users with form management permissions inject malicious scripts through the form_name parameter, these scripts execute in the context of other users who access the affected pages, creating a persistent threat that can compromise multiple users over time. The stored nature of this vulnerability means that once injected, the malicious code remains active until manually removed from the database, making it particularly dangerous for high-privilege accounts that may have access to sensitive administrative functions. Attackers could leverage this vulnerability to create backdoors, steal cookies and session tokens, redirect users to malicious sites, or even perform actions on behalf of the compromised users, all while maintaining persistent access through the stored script execution.
Mitigation strategies for CVE-2026-2002 must prioritize immediate plugin updates to versions that address the input sanitization and output escaping deficiencies, with administrators implementing comprehensive security monitoring to detect any potential exploitation attempts. The recommended approach includes upgrading to the latest available version of the Forminator plugin where the vulnerability has been patched, implementing proper input validation and output escaping mechanisms, and establishing strict access controls to limit who can manage forms within the WordPress environment. Security professionals should also consider implementing web application firewalls to detect and block malicious script injection attempts, conducting regular security audits of plugin installations, and monitoring user activity for unauthorized form modifications. Additionally, organizations should follow ATT&CK framework guidance for defending against credential access and execution techniques, as this vulnerability can be leveraged to escalate privileges and maintain persistent access. The remediation process should include thorough database scanning to identify any existing malicious scripts that may have been injected, user permission reviews to ensure least privilege access, and comprehensive security training for administrators to recognize potential exploitation attempts. Organizations should also consider implementing content security policies to further limit script execution capabilities and establish incident response procedures specifically designed to handle stored XSS vulnerabilities in WordPress environments.