CVE-2026-48557 — Spatie Laravel Media Library < 11.23.0 File Upload Restriction Bypass via FileAdder.php
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 suff…
Published: 2026-05-29 · CVSS: 8.7 · CVSS 4.0
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 · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7