{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-78003", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-08-21T19:58:10.111Z", "datePublished": "2026-08-22T08:26:38.970Z", "dateUpdated": "2026-08-25T13:15:26.345Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-08-22T08:26:38.970Z" }, "affected": [ { "vendor": "mailgun", "product": "Mailgun for WordPress", "versions": [ { "version": "0", "status": "affected", "lessThanOrEqual": "2.2.0", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "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." } ], "title": "Mailgun for WordPress <= 2.2.0 - Unauthenticated Server-Side Request Forgery (SSRF) via 'addresses' Array Keys", "references": [ { "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/110e888d-69fc-4682-b908-2b62288c5227?source=cve" }, { "url": "https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L557" }, { "url": "https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L259" }, { "url": "https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L259" }, { "url": "https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L323" }, { "url": "https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L323" }, { "url": "https://plugins.trac.wordpress.org/browser/mailgun/trunk/mailgun.php#L331" }, { "url": "https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L331" }, { "url": "https://plugins.trac.wordpress.org/browser/mailgun/tags/2.1.10/mailgun.php#L557" } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "CWE-918 Server-Side Request Forgery (SSRF)", "cweId": "CWE-918", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL" } } ], "credits": [ { "lang": "en", "type": "finder", "value": "Osvaldo Noe Gonzalez Del Rio (Os)" } ], "timeline": [ { "time": "2026-08-21T00:00:00.000Z", "lang": "en", "value": "Disclosed" } ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-25T13:14:07.382843Z", "id": "CVE-2026-78003", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-25T13:15:26.345Z" } } ] } }