{"cve":"CVE-2021-4225","nvd":{"published":"2022-04-25T16:16:07.467","modified":"2026-06-17T04:19:14.790","status":"Modified","description":"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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-434"],"references":["https://github.com/pang0lin/CVEproject/blob/main/wordpress_SP-Project_fileupload.md","https://wpscan.com/vulnerability/bd1083d1-edcc-482e-a8a9-c8b6c8d417bd","https://github.com/pang0lin/CVEproject/blob/main/wordpress_SP-Project_fileupload.md","https://wpscan.com/vulnerability/bd1083d1-edcc-482e-a8a9-c8b6c8d417bd"],"products":["smartypantsplugins:sp_project_\\&_document_manager"],"source":"nvd","synced_at":"2026-10-19T21:30:03.577988018+00:00"},"epss":{"cve":"CVE-2021-4225","score":0.01716,"percentile":0.77431,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}