Stored XSS in Filament RichEditor Field

Executive Summary

This vulnerability exists in Filament, a set of components for Laravel development, specifically in versions from 3.0.0 up to 3.3.53. A disabled RichEditor field rendered its raw state without sanitizing HTML content. If the data stored in this field was not already sanitized when the form state was filled, an attacker could insert malicious HTML or JavaScript code. This malicious code could then execute as a cross-site scripting (XSS) attack when users view the form.

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Impact Analysis

The vulnerability can lead to cross-site scripting (XSS) attacks, allowing attackers to execute malicious scripts in the context of users viewing the affected forms. This can result in unauthorized actions, theft of sensitive information such as cookies or session tokens, and potentially compromise user accounts or the integrity of the application.

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Mitigation Strategies

To mitigate this vulnerability, you should upgrade Filament to version 3.3.53 or later, where the issue with the disabled RichEditor field rendering unsanitized HTML has been fixed.

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Detection Guidance

This vulnerability involves a disabled RichEditor field in Filament versions 3.0.0 to 3.3.51 rendering raw HTML without sanitization, which can lead to Cross-Site Scripting (XSS). Detection typically involves inspecting the affected Filament application forms for unsanitized HTML content in disabled RichEditor fields.

Since this is a web application vulnerability, network detection might involve monitoring HTTP responses for unsanitized HTML or JavaScript payloads in form fields.

There are no specific commands provided in the available resources to detect this vulnerability directly.

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Compliance Impact

This vulnerability allows an attacker to inject malicious HTML or JavaScript via a disabled RichEditor field that does not sanitize its content, leading to cross-site scripting (XSS) attacks.

Such XSS vulnerabilities can lead to unauthorized access to sensitive user data or session hijacking, which may result in violations of data protection regulations like GDPR or HIPAA that require safeguarding personal and sensitive information.

Therefore, if exploited, this vulnerability could negatively impact compliance with these standards by compromising the confidentiality and integrity of user data.

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