GHSA-M9CV-24RX-8MV7

Vulnerability from github – Published: 2026-06-17 18:41 – Updated: 2026-06-17 18:41
VLAI
Summary
Filament: Disabled RichEditor field state can be used for XSS
Details

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.

Severity
7.6 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.3.52"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "filament/forms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.3.53"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-55409"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-17T18:41:12Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "In Filament v3, a disabled `RichEditor` field rendered its raw state without sanitizing HTML. Where the data stored in this field\u0027s state isn\u0027t 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.\n\nPlease note that Filament v4 and above does not use the same mechanism for rendering a disabled `RichEditor` so this advisory does not apply.",
  "id": "GHSA-m9cv-24rx-8mv7",
  "modified": "2026-06-17T18:41:12Z",
  "published": "2026-06-17T18:41:12Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/filamentphp/filament/security/advisories/GHSA-m9cv-24rx-8mv7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/filamentphp/filament/pull/20029"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/filamentphp/filament"
    },
    {
      "type": "WEB",
      "url": "https://github.com/filamentphp/filament/releases/tag/v3.3.53"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Filament: Disabled RichEditor field state can be used for XSS"
}


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