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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.

PUBLISHED Reserved 2026-02-01 | Published 2026-05-10 | Updated 2026-05-10 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Missing Authentication for Critical Function

Product status

Any version
affected

Credits

spacehen finder

References

www.exploit-db.com/exploits/50287 (ExploitDB-50287) exploit

wordpress.org/plugins/download-from-files/ (Official Product Homepage) product

www.vulncheck.com/...wnload-from-files-arbitrary-file-upload (VulnCheck Advisory: WordPress Download From Files 1.48 Arbitrary File Upload) third-party-advisory

cve.org (CVE-2021-47940)

nvd.nist.gov (CVE-2021-47940)

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