Security Advisory

CVE-2026-78003

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-22 08:26:38

Last updated 2026-08-25 13:15:26

Assigner Wordfence

CVSS score 9.8

State PUBLISHED

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.

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