GHSA-3ggm-c5m7-hfv5
Spatie Laravel Media Library contains a file upload restriction bypass
Quick fix
GHSA-3ggm-c5m7-hfv5 — spatie/laravel-medialibrary: upgrade to the fixed version with the command below.
composer require spatie/laravel-medialibrary:^11.23.0Details
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.
Are you affected?
Enter the version of the package you're using.
Affected packages
0Fixed in: 11.23.0composer require spatie/laravel-medialibrary:^11.23.0References
- https://nvd.nist.gov/vuln/detail/CVE-2026-48557[ADVISORY]
- https://github.com/spatie/laravel-medialibrary/pull/3939[WEB]
- https://github.com/spatie/laravel-medialibrary/commit/608ea03703d3887c46434f5dda6af56de6346aba[WEB]
- https://github.com/spatie/laravel-medialibrary[PACKAGE]
- https://github.com/spatie/laravel-medialibrary/releases/tag/11.23.0[WEB]
- https://www.vulncheck.com/advisories/spatie-laravel-media-library-file-upload-restriction-bypass-via-fileadder-php[WEB]