CVE-2026-104246CWE-22path-traversal
CVE-2026-104246
Medium · published October 17, 2026
What it is
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.
The record
Technical detail
- CVSS v3.1
- 5.9 · MEDIUM
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS v4.0
- Not supplied
- EPSS
- 0.00280 · 19.4th percentile
- Weakness
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- Published
- 2026-10-17T10:16Z
References (1)
EPSS history
Timeline
18 OCT 03:27Z
EPSS moved — → 0%
epss
17 OCT 06:00Z
Contact Form 7 Signature Addon <= 4.2.2 - Unauthenticated Arbitrary File Read via Path Traversal in Email Attachments
cvelistv5
17 OCT 06:00Z
Contact Form 7 Signature Addon <= 4.2.2 - Unauthenticated Arbitrary File Read via Path Traversal in Email Attachments
cvelistv5