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Vulnerability record · CVE-2021-34639 · published 5 August 2021

CVE-2021-34639: W3eden download manager unrestricted file upload vulnerability

W3eden · Download Manager

Authenticated File Upload in WordPress Download Manager <= 3.1.24 allows authenticated (Author+) users to upload files with a double extension, e.g. "payload.php.png" which is executable in some configurations. This issue affects: WordPress Download Manager version 3.1.24 and prior versions.

8.8 CVSS 3.1 High EPSS 0.58% · top 54.5% CWE-646 · CWE-646CWE-434 · Unrestricted file upload
8.8CVSS 3.1 base score, v2 6.5
0.58%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Authenticated File Upload in WordPress Download Manager <= 3.1.24 allows authenticated (Author+) users to upload files with a double extension, e.g. "payload.php.png" which is executable in some configurations. This issue affects: WordPress Download Manager version 3.1.24 and prior versions.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.wordfence.com/blog/2021/07/wordpress-download-manager-vulnerabilities/ Third Party Advisory
https://www.wordfence.com/blog/2021/07/wordpress-download-manager-vulnerabilities/ Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-34639), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.