CVE-2026-78003

{"id": "CVE-2026-78003", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-78003", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-25T13:14:07.382843Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security@wordfence.com", "affectedData": [{"vendor": "mailgun", "product": "Mailgun for WordPress", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "2.2.0"}], "defaultStatus": "unaffected"}]}], "published": "2026-08-22T09:16:53.543", "references": [{"url": "https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L259", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L323", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L331", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L557", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L259", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L323", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L331", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L557", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/110e888d-69fc-4682-b908-2b62288c5227?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-08-25T14:16:55.953", "sourceIdentifier": "security@wordfence.com"}