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CVE-2026-78003 Details

UNDERGOING ENRICHMENT

The CVE is currently being enriched by the Volerion team. The enrichment process results in the association of reference link tags, CVSS, and CPE applicability statement data.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:…Vector:This vulnerability is currently being analyzed.

CNA: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L259	[email protected]
https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L323	[email protected]
https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L331	[email protected]
https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L557	[email protected]
https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L259	[email protected]
https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L323	[email protected]
https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L331	[email protected]
https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L557	[email protected]
https://www.wordfence.com/threat-intel/vulnerabilities/id/110e888d-69fc-4682-b908-2b62288c5227?source=cve	[email protected]

see all 9 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-918	Server-Side Request Forgery (SSRF)	[email protected]

Affected Products

This vulnerability is currently being analyzed

Change History

2 change records found show changes

Date	Action	Recorded By
Aug 25, 2026	CVE Modified	CISA-ADP
Aug 22, 2026	New CVE Received	[email protected]