CVE-2021-43617: Laravel Framework

Critical severity, CVSS 9.8. EPSS: 19.8% chance of exploitation in the next 30 days.

Laravel Framework through 8.70.2 does not sufficiently block the upload of executable PHP content because Illuminate/Validation/Concerns/ValidatesAttributes.php lacks a check for .phar files, which are handled as application/x-httpd-php on systems based on Debian. NOTE: this CVE Record is for Laravel Framework, and is unrelated to any reports concerning incorrectly written user applications for image upload.

Affected products

• Laravel Framework: up to and including 8.70.2

Published 2021-11-14. Last modified 2026-06-17.