CVE-2026-104246
Contact Form 7 Signature Addon <= 4.2.2 - Unauthenticated Arbitrary File Read via Path Traversal in Email Attachments
- State
- Published
- Severity
- 5.9 Medium
- Published
- Oct 17, 2026
- Updated
- Oct 18, 2026
- Reserved
- Oct 1, 2026
Description
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 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N | CISA-ADP |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
Contact Form 7 Signature AddonUnknown |
|
References
- https://wpscan.com/vulnerability/e56dc60b-9232-43f2-8d57-fe9452c85281/exploitvdb-entrytechnical-description
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