CVE-2021-47940
WordPress Download From Files 1.48 Arbitrary File Upload
- State
- Published
- Severity
- 9.3 Critical
- Published
- May 10, 2026
- Updated
- May 11, 2026
- Reserved
- Feb 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-306 Missing Authentication for Critical Function
Affected Products
| Product | Versions |
|---|---|
Download From Filesdownload-from-files |
|
References
- ExploitDB-50287exploit
- Official Product Homepageproduct
- VulnCheck Advisory: WordPress Download From Files 1.48 Arbitrary File Uploadthird-party-advisory
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