{"id":"CVE-2026-104246","title":"Contact Form 7 Signature Addon <= 4.2.2 - Unauthenticated Arbitrary File Read via Path Traversal in Email Attachments","summary":"The Contact Form 7 Signature Addon WordPress plugin through 4.2.2 does not sanitize a signature field value before building an email attachment path from it, allowing unauthenticated users to attach arbitrary files (bounded to wp-content…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","cvssSource":"adp","cwe":["CWE-22"],"product":"Contact Form 7 Signature Addon","affected":["contact_form_7_signature_addon <= 4.2.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-18T11:02:03.946067Z"},"published":"2026-10-17","updated":"2026-10-18","sourceUpdated":"2026-10-18T11:12:33.183Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-104246","references":[{"url":"https://wpscan.com/vulnerability/e56dc60b-9232-43f2-8d57-fe9452c85281/"}],"tags":["cve.org"],"ingestedAt":"2026-10-17T07:01:26.053Z","epss":0.0028,"epssPercentile":0.20386,"slug":"CVE-2026-104246","body":"## Overview\n\nThe Contact Form 7 Signature Addon WordPress plugin through 4.2.2 does not sanitize a signature field value before building an email attachment path from it, allowing unauthenticated users to attach arbitrary files (bounded to wp-content on current Contact Form 7) to a form's outgoing email via path traversal; when a form is configured to email a copy to a submitter-controlled address, the attacker can read the targeted file.\n\n## Affected\n\n- `contact_form_7_signature_addon <= 4.2.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":224033,"id":"CVE-2026-104246","ts":1792323688188,"field":"cvss","old":null,"new":"5.9"},{"seq":224032,"id":"CVE-2026-104246","ts":1792323688188,"field":"severity","old":"none","new":"medium"}]}