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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.

PUBLISHED Reserved 2025-11-04 | Published 2026-01-17 | Updated 2026-01-20 | Assigner Wordfence




MEDIUM: 5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Problem types

CWE-20 Improper Input Validation

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-12-12:Vendor Notified
2026-01-16:Disclosed

Credits

Md. Moniruzzaman Prodhan finder

References

www.wordfence.com/...-a7ee-48c8-996c-b8db1934fdeb?source=cve

plugins.trac.wordpress.org/...act-form&sfp_email=&sfph_mail=

cve.org (CVE-2025-12718)

nvd.nist.gov (CVE-2025-12718)

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