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CVE-2026-55409— Filament: Disabled RichEditor field state can be used for XSS

Quick assessment

Affected
filamentphp filament
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

filamentphp filament是filamentphp团队开源的一套Laravel后台管理面板。 filamentphp filament 3.0.0版本至3.3.53之前版本存在跨站脚本漏洞，该漏洞源于未处理RichEditor字段的HTML，可能导致攻击者注入恶意HTML或JavaScript，从而实现跨站脚本攻击。

CVSS 7.6 · High EPSS 0.28% · P20

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
filamentphp filament >= 3.0.0, < 3.3.53 affected
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I. Basic Information for CVE-2026-55409

Vulnerability Information
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Vulnerability Title
Filament: Disabled RichEditor field state can be used for XSS
Source: CVE Program / CVE List V5
Vulnerability Description
Filament is a collection of full-stack components for accelerated Laravel development. From 3.0.0 until 3.3.53, 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. This vulnerability is fixed in 3.3.53.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
filamentphp filament 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
filamentphp filament是filamentphp团队开源的一套Laravel后台管理面板。 filamentphp filament 3.0.0版本至3.3.53之前版本存在跨站脚本漏洞，该漏洞源于未处理RichEditor字段的HTML，可能导致攻击者注入恶意HTML或JavaScript，从而实现跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
filamentphp filament >= 3.0.0, < 3.3.53 -

II. Public POCs for CVE-2026-55409

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9256 chars
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Trigger conditions & impact
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III. Intelligence Information for CVE-2026-55409

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Vendor Advisories for CVE-2026-55409 (1)

Same Patch Batch · filamentphp · 2026-06-22 · 6 CVEs total

CVE-2026-48505 7.4 HIGH Filament: Multi-factor authentication (app) recovery codes can still be used multiple time
CVE-2026-48500 6.5 MEDIUM Filament: Unauthenticated temporary file upload on auth pages
CVE-2026-48067 6.5 MEDIUM Filament: Inconsistent scope enforcement for AttachAction and AssociateAction Select field
CVE-2026-48167 6.4 MEDIUM Filament: Unvalidated ImageColumn and ImageEntry values can be used for XSS
CVE-2026-48166 5.3 MEDIUM Filament: Timing-based user enumeration on login page

IV. Related Vulnerabilities

Same product: filament
Same vendor: filamentphp
Same weakness: CWE-79

V. Comments for CVE-2026-55409

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