Quick Contact Form <= 8.2.6 - Unauthenticated Open Mail Relay

Improper Input Validation
CVE CVE-2025-12718
CVSS Medium (5.8)
Publicly Published January 16, 2026
Last Updated January 17, 2026
Researcher Md. Moniruzzaman Prodhan (NomanProdhan)
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.

References

1 affected software package

Software Type Plugin
Software Slug quick-contact-form (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 8.2.6
Patched Version
  • 8.2.7
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