CVE-2021-47940

Critical

Published: 10/05/2026(UTC)Translated: 14/06/2026(UTC)NVD NIST

Summary

The WordPress Plugin Download From Files version 1.48 and earlier contains an arbitrary file upload vulnerability. Attackers can exploit the AJAX fileupload action to upload malicious files, bypassing file type restrictions.

Risk Assessment

This vulnerability allows unauthenticated attackers to upload malicious software, potentially leading to server takeover and data breaches.

Recommendation

It is recommended to update the Download From Files plugin to the latest version to mitigate this vulnerability and implement additional security measures for file uploads.

Original NVD description (English source)

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.