{"id":"CVE-2026-115303","state":"PUBLISHED","title":"Contact Form by Supsystic < 1.11.1 - Unauthenticated CRLF / Email Header Injection via Reply-To Field Mapping","description":"The Contact Form by Supsystic WordPress plugin before 1.11.1 does not strip CR/LF characters or re-validate submitted field values before concatenating them into outgoing email headers when a form is configured to map a submitted field into its Reply-To, From or Cc header, allowing unauthenticated users to inject arbitrary email headers such as additional Bcc or Cc recipients into the notification email.","publishedAt":"2026-10-29T08:03:46.351Z","updatedAt":"2026-10-29T10:45:50.346Z","severity":{"score":3.7,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","source":"WPScan"},"assigner":"WPScan","products":["Unknown Contact Form by Supsystic"],"affected":[{"vendor":"Unknown","product":"Contact Form by Supsystic","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.11.1","versionType":"semver"}],"collectionURL":"https://wordpress.org/plugins"}],"references":["https://wpscan.com/vulnerability/c32e3ccd-84cb-42a4-a343-353a02ccb541/"],"weaknesses":["CWE-93"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/115xxx/CVE-2026-115303.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-115303","state":"PUBLISHED","datePublished":"2026-10-29T08:03:46.351Z","dateUpdated":"2026-10-29T10:45:50.346Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-10-22T09:43:40.292Z"},"containers":{"cna":{"title":"Contact Form by Supsystic < 1.11.1 - Unauthenticated CRLF / Email Header Injection via Reply-To Field Mapping","descriptions":[{"lang":"en","value":"The Contact Form by Supsystic WordPress plugin before 1.11.1 does not strip CR/LF characters or re-validate submitted field values before concatenating them into outgoing email headers when a form is configured to map a submitted field into its Reply-To, From or Cc header, allowing unauthenticated users to inject arbitrary email headers such as additional Bcc or Cc recipients into the notification email."}],"affected":[{"vendor":"Unknown","product":"Contact Form by Supsystic","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.11.1","versionType":"semver"}],"collectionURL":"https://wordpress.org/plugins"}],"references":[{"url":"https://wpscan.com/vulnerability/c32e3ccd-84cb-42a4-a343-353a02ccb541/","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:N/I:L/A:N","baseScore":3.7,"baseSeverity":"LOW"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-10-29T08:03:46.351Z"},"credits":[{"lang":"en","value":"Emirhan Sevmez","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":{"id":"CVE-2026-115303","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-29T10:43:06.128153Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-93","lang":"en","type":"CWE","description":"CWE-93 Improper Neutralization of CRLF Sequences ('CRLF Injection')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-29T10:45:50.346Z"}}]}}}