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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
mailgun Mailgun for WordPress
Default version status: unaffected
0 to ≤ 2.2.0affected
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/110e888d-69fc-4682-b908-2b62288c5227?source=cve ↗
- https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L557 ↗
- https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L259 ↗
- https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L259 ↗
- https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L323 ↗
- https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L323 ↗
- https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L331 ↗
- https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L331 ↗
- https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L557 ↗