The Quick Contact Form plugin for WordPress is vulnerable to Open Mail Relay in all versions up to, and including, 8.2.6. This is due to the 'qcf_validate_form' AJAX endpoint allowing a user controlled parameter to set the 'from' email address. This makes it possible for unauthenticated attackers to send emails to arbitrary recipients utilizing the server. The information is limited to the contact form submission details.
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Fixes

Solution

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Workaround

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History

Sat, 17 Jan 2026 02:30:00 +0000

Type Values Removed Values Added
Description The Quick Contact Form plugin for WordPress is vulnerable to Open Mail Relay in all versions up to, and including, 8.2.6. This is due to the 'qcf_validate_form' AJAX endpoint allowing a user controlled parameter to set the 'from' email address. This makes it possible for unauthenticated attackers to send emails to arbitrary recipients utilizing the server. The information is limited to the contact form submission details.
Title Quick Contact Form <= 8.2.6 - Unauthenticated Open Mail Relay
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 5.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-01-17T02:22:32.748Z

Reserved: 2025-11-04T20:55:18.963Z

Link: CVE-2025-12718

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-01-17T03:16:03.037

Modified: 2026-01-17T03:16:03.037

Link: CVE-2025-12718

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses