blogsafe.org My Downloads

BlogSafe.org

WordPress CVEs

Search and review WordPress-related vulnerability records.

← Back to CVE list

CVE-2026-86813

MEDIUM 4.8 CVSS 3.1
Published
September 11, 2026
Last modified
September 11, 2026
NVD status
Deferred
Reported by
contact@wpscan.com
Weakness
CWE-93
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Description

The MetForm WordPress plugin before 4.1.9 does not properly neutralize newline characters in user-submitted values that are placed into notification email headers, allowing unauthenticated attackers to inject additional email headers, such as Bcc, into the emails the site sends when a submitted field value is configured to populate a header.

Affected WordPress components

  • MetForm – Contact Form, Survey, Quiz, Conditional Forms, Form Templates & Custom Form Builder for Elementor Plugin · metform
    Confirmed match Active
    Before 4.1.9
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • Unknown MetForm — Before 4.1.9

References

  • wpscan.com https://wpscan.com/vulnerability/afda2a26-b965-42cb-85a8-4a4d83ec026e/
  • nvd.nist.gov Official NVD record