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.
History

Wed, 21 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions contact Form 7 Signature Addon
Vendors & Products Wordpress-extensions
Wordpress-extensions contact Form 7 Signature Addon

Sun, 18 Oct 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-200

Sun, 18 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 17 Oct 2026 07:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-200
CWE-22

Sat, 17 Oct 2026 06:15:00 +0000

Type Values Removed Values Added
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.
Title Contact Form 7 Signature Addon <= 4.2.2 - Unauthenticated Arbitrary File Read via Path Traversal in Email Attachments
References

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-10-17T06:00:12.551Z

Updated: 2026-10-18T11:12:33.183Z

Reserved: 2026-10-01T19:01:14.881Z

Link: CVE-2026-104246

cve-icon Vulnrichment

Updated: 2026-10-18T11:01:50.348Z

cve-icon NVD

Status : Deferred

Published: 2026-10-17T06:16:33.347

Modified: 2026-10-19T21:02:51.987

Link: CVE-2026-104246

cve-icon Redhat

No data.