CVE-2025-12718

Quick Contact Form <= 8.2.6 - Unauthenticated Open Mail Relay

mediumImproper Input Validation

5.8

CVSS Score

5.8

CVSS Score

medium

Severity

8.2.7

Patched in

Time to patch

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.

CVSS Vector Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

None

Confidentiality

Low

Integrity

None

Availability

Technical Details

Affected versions<=8.2.6

PublishedJanuary 16, 2026

Last updatedJanuary 17, 2026

Affected pluginquick-contact-form

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/dc7ba538-a7ee-48c8-996c-b8db1934fdeb?source=api-prod

Check if your site is affected.

Run a free security audit to detect vulnerable plugins, outdated versions, and misconfigurations.

Run free audit Browse CVE database