blogsafe.org My Downloads

BlogSafe.org

WordPress CVEs

Search and review WordPress-related vulnerability records.

← Back to CVE list

CVE-2026-78003

CRITICAL 9.8 CVSS 3.1
Published
August 22, 2026
Last modified
October 12, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-918
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The Mailgun for WordPress plugin for WordPress is vulnerable to Server-Side Request Forgery (SSRF) via path traversal in versions up to and including 2.2.0. This is due to insufficient input validation in the add_list() function, which accepts user-controlled array keys from $_POST['addresses'], passes them through sanitize_text_field(). This makes it possible for unauthenticated attackers to make authenticated POST requests to any Mailgun API endpoint using the WordPress site's API key, including creating inbound email-forwarding routes that can intercept password reset emails, leading to administrator account takeover.

Affected WordPress components

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

  • mailgun Mailgun for WordPress — Up to and including 2.2.0

References