{"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"}}]}}