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CVE-2026-48557— Spatie Laravel Media Library < 11.23.0 File Upload Restriction Bypass via FileAdder.php

Quick assessment

Affected
spatie laravel-medialibrary
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.

Spatie Laravel Media Library Pro是比利时Spatie公司的一个 laravel-medialibrary 的UI 组件。 Spatie Laravel Media Library Pro 11.23.0之前版本存在安全漏洞，该漏洞源于FileAdder::defaultSanitizer()中的文件上传限制绕过，清理器仅检查最终文件名后缀，允许shell.php.jpg等双扩展名文件名绕过阻止列表，且pathinfo()在保存的文件名中保留内部.php词干，阻止列表还省略了

CVSS 8.8 · High EPSS 0.44% · P37

Affected Version Matrix 1

VendorProduct Version RangeStatus
spatie laravel-medialibrary < 11.23.0 affected
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I. Basic Information for CVE-2026-48557

Vulnerability Information
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Vulnerability Title
Spatie Laravel Media Library < 11.23.0 File Upload Restriction Bypass via FileAdder.php
Source: CVE Program / CVE List V5
Vulnerability Description
Spatie Laravel Media Library before version 11.23.0 contains a file upload restriction bypass in FileAdder::defaultSanitizer(). The sanitizer checks only the final filename suffix, allowing double-extension filenames such as shell.php.jpg to bypass the blocklist, with pathinfo() preserving inner .php stems in saved filenames. The blocklist also omits executable extensions including .php6, .shtml, and .htaccess. The double-extension bypass requires a legacy Apache AddHandler configuration to achieve PHP execution; the incomplete blocklist bypass does not.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5
Vulnerability Title
Spatie Laravel Media Library Pro 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Spatie Laravel Media Library Pro是比利时Spatie公司的一个 laravel-medialibrary 的UI 组件。 Spatie Laravel Media Library Pro 11.23.0之前版本存在安全漏洞，该漏洞源于FileAdder::defaultSanitizer()中的文件上传限制绕过，清理器仅检查最终文件名后缀，允许shell.php.jpg等双扩展名文件名绕过阻止列表，且pathinfo()在保存的文件名中保留内部.php词干，阻止列表还省略了
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
spatie laravel-medialibrary 0 ~ 11.23.0 -

II. Public POCs for CVE-2026-48557

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7980 chars
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III. Intelligence Information for CVE-2026-48557

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Patches & Fixes for CVE-2026-48557 (2)

Vendor Advisories for CVE-2026-48557 (1)

Vendor Pages for CVE-2026-48557 (1)

IV. Related Vulnerabilities

Same product: laravel-medialibrary
Same vendor: spatie
Same weakness: CWE-184

V. Comments for CVE-2026-48557

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