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

CVSS 8.8 · High
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不完整的黑名单
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
spatielaravel-medialibrary 0 ~ 11.23.0 -

II. Public POCs for CVE-2026-48557

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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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