CVE-2021-4225
mediumpriority · track · 36EPSS 0.017 · 77 %ileEUUSEPSS · scored 2026-10-28
The SP Project & 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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
- smartypantsplugins sp project & document manager< 4.24nvdUScpe:2.3:a:smartypantsplugins:sp_project_\&_document_manager:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2021-4225/cnnvd
- https://github.com/pang0lin/CVEproject/blob/main/wordpress_SP-Project_fileupload.mdcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-4225cnnvd
- https://wpscan.com/vulnerability/bd1083d1-edcc-482e-a8a9-c8b6c8d417bdcnnvd
- https://github.com/pang0lin/CVEproject/blob/main/wordpress_SP-Project_fileupload.mdenisa_euvd
- https://wpscan.com/vulnerability/bd1083d1-edcc-482e-a8a9-c8b6c8d417bdenisa_euvd
- https://github.com/pang0lin/CVEproject/blob/main/wordpress_SP-Project_fileupload.mdExploitThird Party Advisorynvd
- https://wpscan.com/vulnerability/bd1083d1-edcc-482e-a8a9-c8b6c8d417bdExploitThird Party Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan