{"id":"CVE-2021-4350","state":"PUBLISHED","title":"Frontend File Manager <= 18.2 - Unauthenticated HTML Injection leading to Spam Emails","description":"The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated HTML Injection in versions up to, and including, 18.2. This is due to lacking authentication protections on the wpfm_send_file_in_email AJAX action. This makes it possible for unauthenticated attackers to send emails using the site with a custom subject, recipient email, and body with unsanitized HTML content.  This effectively lets the attacker use the site as a spam relay.","publishedAt":"2023-06-07T01:51:18.755Z","updatedAt":"2026-04-08T16:50:23.480Z","severity":{"score":7.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","source":"Wordfence"},"assigner":"Wordfence","products":["nmedia Frontend File Manager Plugin"],"affected":[{"vendor":"nmedia","product":"Frontend File Manager Plugin","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"18.3","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/49150180-9de0-4318-b21b-779daaeb7a52?source=cve","https://blog.nintechnet.com/wordpress-frontend-file-manager-plugin-fixed-multiple-critical-vulnerabilities/"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-29T19:49:23.890Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/4xxx/CVE-2021-4350.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-4350","state":"PUBLISHED","datePublished":"2023-06-07T01:51:18.755Z","dateUpdated":"2026-04-08T16:50:23.480Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2023-06-06T12:40:12.785Z"},"containers":{"cna":{"title":"Frontend File Manager <= 18.2 - Unauthenticated HTML Injection leading to Spam Emails","descriptions":[{"lang":"en","value":"The Frontend File Manager plugin for WordPress is vulnerable to Unauthenticated HTML Injection in versions up to, and including, 18.2. This is due to lacking authentication protections on the wpfm_send_file_in_email AJAX action. This makes it possible for unauthenticated attackers to send emails using the site with a custom subject, recipient email, and body with unsanitized HTML content.  This effectively lets the attacker use the site as a spam relay."}],"affected":[{"vendor":"nmedia","product":"Frontend File Manager Plugin","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"18.3","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/49150180-9de0-4318-b21b-779daaeb7a52?source=cve"},{"url":"https://blog.nintechnet.com/wordpress-frontend-file-manager-plugin-fixed-multiple-critical-vulnerabilities/"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","baseScore":7.2,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862 Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-08T16:50:23.480Z"},"credits":[{"lang":"en","type":"finder","value":"Jerome Bruandet"}],"timeline":[{"time":"2021-07-12T00:00:00.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/49150180-9de0-4318-b21b-779daaeb7a52?source=cve","tags":["x_transferred"]},{"url":"https://blog.nintechnet.com/wordpress-frontend-file-manager-plugin-fixed-multiple-critical-vulnerabilities/","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T17:23:10.534Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-12-28T00:41:20.561108Z","id":"CVE-2021-4350","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-12-28T00:56:47.575Z"}}]}}}