Executive Summary

The LatePoint – Calendar Booking Plugin for Appointments and Events for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) through the 'booking_form_page_url' parameter in all versions up to and including 5.5.0.

This vulnerability exists because the plugin does not properly sanitize input or escape output, allowing unauthenticated attackers to inject malicious web scripts.

These injected scripts are stored in the database and executed whenever a user accesses the affected page.

Notably, the malicious activity log entry is created even if Stripe payment integration is not configured, due to the way the plugin processes the latepoint_order_intent_created action hook.

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Impact Analysis

This vulnerability can allow attackers to execute arbitrary scripts in the context of users visiting the affected pages.

Such script execution can lead to theft of user credentials, session hijacking, defacement, or redirection to malicious sites.

Because the vulnerability is exploitable without authentication, any visitor to the site could be affected.

Additionally, the integrity of the booking system and user trust can be compromised.

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Compliance Impact

The vulnerability allows unauthenticated attackers to inject arbitrary web scripts via stored cross-site scripting, which can lead to unauthorized access or manipulation of user data.

Such unauthorized access or data manipulation could potentially violate data protection and privacy requirements outlined in standards like GDPR and HIPAA, which mandate the protection of personal and sensitive information.

However, the provided information does not explicitly describe the direct impact on compliance with these regulations.

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