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CVE-2021-47940 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: May 10, 2026

WordPress Plugin Download From Files - Unrestricted File Upload

Published: May 10, 2026Updated: May 10, 2026Remote Exploitable

Overview

WordPress Plugin Download From Files <= 1.48 contains an unrestricted file upload vulnerability caused by improper validation of the allowExt parameter in AJAX fileupload action, letting unauthenticated attackers upload malicious executable files to the web root.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Unauthenticated attackers can upload malicious executable files, potentially leading to remote code execution and full server compromise.

Mitigation

Update to the latest version of the plugin.

References

https://wordpress.org/plugins/download-from-files/
https://www.exploit-db.com/exploits/50287
https://www.vulncheck.com/advisories/wordpress-download-from-files-arbitrary-file-upload

Related Resources

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Details

CVE ID: CVE-2021-47940
Severity: Critical
CVSS Score: 9.8
Type: unrestricted_file_upload
Status: new

CWE

CWE-306

CVSS Metrics

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