CVE-2021-47940 - CVE House
Back to Database
Status published Critical CVE-2021-47940

WordPress Download From Files 1.48 Arbitrary File Upload

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-47940

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • spacehen

Affected Vendor

download-from-files

View all reports →

Affected Software

Download From Files
Vulnerable Versions:
0

Timeline

Official Publish: May 10th, 2026
Last Modified: May 11th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)