{"id":"CVE-2026-19862","state":"PUBLISHED","title":"JetFormBuilder < 3.6.5.2 - Unauthenticated Email Header Injection via Send Email Action","description":"The JetFormBuilder WordPress plugin before 3.6.5.2 does not validate or strip line breaks from address values it sources from submitted form fields before adding them to the headers of the e-mails it sends, allowing unauthenticated users to inject arbitrary e-mail headers, add hidden recipients and spoof the sender. Exploitation requires the site to be configured to take one of the message's addresses from a form field.","publishedAt":"2026-09-06T09:36:33.798Z","updatedAt":"2026-09-06T10:43:40.381Z","severity":{"score":4.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","source":"WPScan"},"assigner":"WPScan","products":["Unknown JetFormBuilder"],"affected":[{"vendor":"Unknown","product":"JetFormBuilder","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.6.5.2","versionType":"semver"}],"collectionURL":"https://wordpress.org/plugins"}],"references":["https://wpscan.com/vulnerability/b3fe5552-6736-4479-9c61-c05bc3328b8e/"],"weaknesses":["CWE-93"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/19xxx/CVE-2026-19862.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-19862","state":"PUBLISHED","datePublished":"2026-09-06T09:36:33.798Z","dateUpdated":"2026-09-06T10:43:40.381Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-08-14T10:01:01.293Z"},"containers":{"cna":{"title":"JetFormBuilder < 3.6.5.2 - Unauthenticated Email Header Injection via Send Email Action","descriptions":[{"lang":"en","value":"The JetFormBuilder WordPress plugin before 3.6.5.2 does not validate or strip line breaks from address values it sources from submitted form fields before adding them to the headers of the e-mails it sends, allowing unauthenticated users to inject arbitrary e-mail headers, add hidden recipients and spoof the sender. Exploitation requires the site to be configured to take one of the message's addresses from a form field."}],"affected":[{"vendor":"Unknown","product":"JetFormBuilder","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.6.5.2","versionType":"semver"}],"collectionURL":"https://wordpress.org/plugins"}],"references":[{"url":"https://wpscan.com/vulnerability/b3fe5552-6736-4479-9c61-c05bc3328b8e/","name":"wpscan.com","tags":["exploit","vdb-entry","technical-description"]}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","baseScore":4.8,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-09-06T09:36:33.798Z"},"credits":[{"lang":"en","value":"Emirhan Kurt","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-06T10:41:03.786533Z","id":"CVE-2026-19862","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-93","type":"CWE","lang":"en","description":"CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-06T10:43:40.381Z"}}]}}}