CVE-2025-12718CWE-20

Quick Contact Form <= 8.2.6 - Unauthenticated Open Mail Relay

Medium · published January 17, 2026

CVSS v3.1
5.8
EPSS
0%
Percentile
14.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00239 · 14.2th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-01-17T02:22Z
EPSS history
Timeline
  • 17 JAN 02:22Z
    Quick Contact Form <= 8.2.6 - Unauthenticated Open Mail Relay
    cvelistv5