CRITICALVulnerability
Verified
Global

NVD CRITICAL: CVE-2021-47940 — WordPress Plugin Download From Files version 1.48 and earlier contains an arbitr...

·Source: NIST NVD

Updated:

Executive Summary

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

Analysis

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. CVSS Score: 9.8. Published: 2026-05-10T13:16:30.363.

Indicators of Compromise (1)

CVE (1)
CVE-2021-47940
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on May 10, 2026. Verified by: NIST.

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