---
id: CVE-2026-55409
title: 'Filament: Disabled RichEditor field state can be used for XSS'
summary: 'Filament: Disabled RichEditor field state can be used for XSS'
severity: high
cvss: 7.6
cwe:
  - CWE-79
vendor: filament
product: filament/forms
ecosystem: composer
affected:
  - 'filament/forms >= 3.0.0, <= 3.3.52'
patched:
  - filament/forms 3.3.53
published: '2026-06-17'
updated: '2026-06-17'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-m9cv-24rx-8mv7'
references:
  - url: >-
      https://github.com/filamentphp/filament/security/advisories/GHSA-m9cv-24rx-8mv7
  - url: 'https://github.com/filamentphp/filament/pull/20029'
  - url: 'https://github.com/filamentphp/filament/releases/tag/v3.3.53'
  - url: 'https://github.com/advisories/GHSA-m9cv-24rx-8mv7'
tags:
  - ghsa
  - composer
epss: 0.00284
epssPercentile: 0.21232
ingestedAt: '2026-06-29T14:31:47.188Z'
---

## Overview

In Filament v3, a disabled `RichEditor` field rendered its raw state without sanitizing HTML. Where the data stored in this field's state isn't sanitized already when the form state was filled, an attacker could plant malicious HTML or JavaScript and achieve XSS that executes for users who view the form.

Please note that Filament v4 and above does not use the same mechanism for rendering a disabled `RichEditor` so this advisory does not apply.

## Affected packages

- `filament/forms >= 3.0.0, <= 3.3.52`

## Remediation

Upgrade to a patched release:

- `filament/forms 3.3.53`