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CVE-2026-48505— Filament: Multi-factor authentication (app) recovery codes can still be used multiple times via concurrent submission

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 4.0.0至4.11.5之前版本和5.0.0至5.6.5之前版本存在安全漏洞，该漏洞源于处理应用多因素认证的恢复码时存在竞争条件问题，可能导致同一恢复码通过并发提交重复使用。

CVSS 7.4 · High EPSS 0.30% · P20

Affected Version Matrix 2

VendorProduct Version RangeStatus
filamentphp filament >= 4.0.0, < 4.11.5 affected
>= 5.0.0, < 5.6.5 affected
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I. Basic Information for CVE-2026-48505

Vulnerability Information
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Vulnerability Title
Filament: Multi-factor authentication (app) recovery codes can still be used multiple times via concurrent submission
Source: CVE Program / CVE List V5
Vulnerability Description
Filament is a collection of full-stack components for accelerated Laravel development. From 4.0.0 until 4.11.5 and 5.6.5, a flaw in the handling of recovery codes for app-based multi-factor authentication allows the same recovery code to be reused via concurrent submission. This issue does not affect email-based MFA. It also only applies when recovery codes are enabled. If an attacker gains access to both the user's password and their recovery codes, they get two authenticated sessions per recovery code burned instead of one, or more if they batch the parallel submissions wider, materially extending the attacker's window of access compared to what the single-use guarantee implies. This vulnerability is fixed in 4.11.5 and 5.6.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
filamentphp filament 竞争条件问题漏洞
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 4.0.0至4.11.5之前版本和5.0.0至5.6.5之前版本存在安全漏洞，该漏洞源于处理应用多因素认证的恢复码时存在竞争条件问题，可能导致同一恢复码通过并发提交重复使用。
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 >= 4.0.0, < 4.11.5 -

II. Public POCs for CVE-2026-48505

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 9068 chars
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III. Intelligence Information for CVE-2026-48505

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Vendor Advisories for CVE-2026-48505 (1)

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

CVE-2026-55409 7.6 HIGH Filament: Disabled RichEditor field state can be used for XSS
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-362

V. Comments for CVE-2026-48505

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