CVE-2026-14484 in RapiSafe Plugin
Summary
by MITRE • 08/15/2026
The RapiSafe – Secure Multi File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the handleAjaxRemoveUpload function in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). The nonce required to invoke the removal handler is exposed in public-facing JavaScript as RSMFCF7Vars.nonce on every Contact Form 7 page rendering a RapiSafe upload field, making it obtainable by any unauthenticated visitor.
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Analysis
by VulDB Data Team • 08/15/2026
The vulnerability identified in the RapiSafe – Secure Multi File Upload for Contact Form 7 plugin represents a critical security flaw that undermines the integrity of WordPress installations. This issue stems from insufficient input validation within the handleAjaxRemoveUpload function, which processes file deletion requests without proper authorization checks or path sanitization. The flaw affects all versions up to and including 1.0.4, creating a persistent risk across multiple plugin releases. The vulnerability classification aligns with CWE-22, known as "Improper Limitation of a Pathname to a Restricted Directory," which specifically addresses inadequate validation of file paths that can lead to directory traversal attacks.
The technical implementation of this vulnerability exploits the exposed nonce mechanism within the plugin's JavaScript interface. The RSMFCF7Vars.nonce variable becomes publicly accessible during every Contact Form 7 page rendering that includes a RapiSafe upload field, eliminating any client-side security measures typically employed to prevent unauthorized operations. This exposure directly violates security best practices outlined in the OWASP Top Ten, particularly the "Insecure Design" category where insufficient input validation and improper access control create exploitable conditions. The nonce value, which should remain secret and protected from public access, becomes readily available to any unauthenticated visitor through browser inspection tools or network monitoring.
The operational impact of this vulnerability extends far beyond simple file deletion capabilities, creating a severe threat landscape for affected WordPress installations. Attackers can leverage this flaw to systematically remove critical system files including wp-config.php, which contains database credentials and security keys essential for application operation. When combined with other exploitation techniques, such as the potential to delete plugin files or core WordPress components, this vulnerability can lead to complete system compromise and remote code execution. The attack vector requires no authentication credentials, making it particularly dangerous as any visitor can exploit this weakness without prior access to the system.
Security mitigation strategies for this vulnerability must address both immediate remediation and long-term protection measures. The primary solution involves updating to a patched version of the plugin where the nonce exposure has been resolved and proper file path validation has been implemented. Additionally, administrators should implement network-level restrictions using web application firewalls to monitor and block suspicious deletion requests targeting system files. The ATT&CK framework's T1059.007 technique for "Command and Scripting Interpreter: PowerShell" could be leveraged by attackers to execute malicious commands after gaining access through this vulnerability, emphasizing the need for comprehensive monitoring of file system operations. Regular security audits should include verification of nonce handling in JavaScript implementations and validation of all user-supplied paths before file system operations are executed.