CVE-2021-47940
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
May 10, 2026
Vendor
unknown
Description
WordPress Plugin Download From Files version 1.48 and earlier contains an arbitrary file upload vulnerability that allows unauthenticated attackers to upload malicious files by exploiting the AJAX fileupload action. Attackers can send POST requests to the admin-ajax.php endpoint with the download_from_files_617_fileupload action, manipulating the allowExt parameter to bypass file type restrictions and upload executable files like PHP shells to the web root.