Stored XSS in MW WP Form WordPress Plugin

Executive Summary

This vulnerability is a stored Cross-Site Scripting (XSS) flaw in the MW WP Form WordPress plugin before version 5.1.6. It occurs because the plugin does not properly sanitize or escape form settings before displaying them in an admin dashboard page. This allows users with Editor-level access or higher to inject malicious scripts that target high-privilege users like administrators.

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Detection Guidance

Check the installed version of the MW WP Form plugin. If it is below 5.1.6, the system is vulnerable. Use WordPress admin dashboard or run a command like 'wp plugin list' if using WP-CLI to verify the version.

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Impact Analysis

If exploited, this vulnerability could allow attackers with Editor access to inject malicious scripts into admin dashboard pages. When high-privilege users like administrators view these pages, the scripts could execute, potentially leading to unauthorized actions, data theft, or further compromise of the WordPress site.

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Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR or HIPAA. Stored XSS attacks could expose sensitive user data, resulting in legal penalties, reputational damage, and loss of trust.

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Mitigation Strategies

Update the MW WP Form plugin to version 5.1.6 or later immediately. If updating is not possible, consider disabling the plugin until an update is applied.

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