Executive Summary

The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability. This occurs because the plugin does not properly sanitize or escape input in the 'drag_n_drop_text' and 'drag_n_drop_browse_text' settings. As a result, an authenticated attacker with administrator-level access or higher can inject malicious web scripts into pages. These scripts will execute whenever a user accesses the infected page.

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Impact Analysis

This vulnerability allows an attacker with high-level access to inject arbitrary scripts into web pages. These scripts can execute in the context of users visiting those pages, potentially leading to theft of sensitive information, session hijacking, or other malicious actions. Because the attacker needs administrator-level access, the risk is somewhat limited to compromised or malicious insiders or attackers who have already gained elevated privileges.

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Mitigation Strategies

To mitigate this vulnerability, you should update the Drag and Drop Multiple File Upload for Contact Form 7 plugin to a version later than 1.3.9.7 where the issue is fixed.

Additionally, restrict administrator-level access to trusted users only, as exploitation requires authenticated users with high privileges.

Ensure proper input sanitization and output escaping are applied if you have custom modifications or are using older versions.

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