CVE-2021-47940 (GCVE-0-2021-47940)

Vulnerability from cvelistv5 – Published: 2026-05-10 12:43 – Updated: 2026-05-11 13:23
VLAI
Title
WordPress Download From Files 1.48 Arbitrary File Upload
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 and upload executable files like PHP shells to the web root.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-11 13:19 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
download-from-files Download From Files Affected: 0 , ≤ 1.48 (custom)
Create a notification for this product.
Date Public
2021-10-09 00:00
Credits
spacehen
Show details on NVD website
To clipboard 

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