{"id":"CVE-2021-4455","aliases":["EUVD-2021-34680","GHSA-f33h-gm37-5r83"],"status":"published","title":"Wordpress Plugin Smart Product Review \u003c= 1.0.4 - Unauthenticated Arbitrary File Upload","description":"The Wordpress Plugin Smart Product Review plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00807,"percentile":0.57154,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2025-04-19T07:23:39Z","modified":"2026-06-17T04:19:47Z","products":[{"vendor":"codeflist","product":"wordpress plugin smart product review"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1de9183c-95b9-4500-85e2-08dcee956360?source=cve"},{"url":"https://www.exploit-db.com/exploits/50533"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-4455"},{"url":"https://github.com/advisories/GHSA-f33h-gm37-5r83"}],"sources":{"cve":[{"id":"CVE-2021-4455","title":"Wordpress Plugin Smart Product Review \u003c= 1.0.4 - Unauthenticated Arbitrary File Upload","description":"The Wordpress Plugin Smart Product Review plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2025-04-19T07:23:39.405Z","modified":"2026-04-08T16:40:42.465Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:33:07.697752Z"}],"euvd":[{"id":"EUVD-2021-34680","description":"The Wordpress Plugin Smart Product Review plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2025-04-19T07:23:39Z","modified":"2026-04-08T16:40:42Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T19:25:06.888768Z"}],"ghsa":[{"id":"GHSA-f33h-gm37-5r83","title":"The Wordpress Plugin Smart Product Review plugin for WordPress is vulnerable to arbitrary file...","description":"The Wordpress Plugin Smart Product Review plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2025-04-19T09:31:06Z","modified":"2025-04-19T09:31:07Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:01:38.442003Z"}],"nvd":[{"id":"CVE-2021-4455","description":"The Wordpress Plugin Smart Product Review plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.","status":"published","published":"2025-04-19T08:15:13.22Z","modified":"2026-06-17T04:19:47.597Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:07:09.005706Z"}]}}