vulnerability
WordPress Plugin: sp-client-document-manager: CVE-2021-4225: Unrestricted Upload of File with Dangerous Type
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:S/C:P/I:P/A:P) | Jul 28, 2021 | May 15, 2025 | Apr 29, 2026 |
Severity
7
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:P)
Published
Jul 28, 2021
Added
May 15, 2025
Modified
Apr 29, 2026
Description
The SP Project and Document Manager WordPress plugin before 4.24 allows any authenticated users, such as subscribers, to upload files. The plugin attempts to prevent PHP and other similar files that could be executed on the server from being uploaded by checking the file extension. It was discovered that on Windows servers, the security checks in place were insufficient, enabling bad actors to potentially upload backdoors on vulnerable sites.
Solution
sp-client-document-manager-plugin-cve-2021-4225
References
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.