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2 vulnerabilities found for Mailgun for WordPress by mailgun
CVE-2026-78003 (GCVE-0-2026-78003)
Vulnerability from nvd – Published: 2026-08-22 08:26 – Updated: 2026-08-22 08:26
VLAI
EPSS
VEX
Title
Mailgun for WordPress <= 2.2.0 - Unauthenticated Server-Side Request Forgery (SSRF) via 'addresses' Array Keys
Summary
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.
Severity
9.8 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
9 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mailgun | Mailgun for WordPress |
Affected:
0 , ≤ 2.2.0
(semver)
|
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Mailgun for WordPress",
"vendor": "mailgun",
"versions": [
{
"lessThanOrEqual": "2.2.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Osvaldo Noe Gonzalez Del Rio (Os)"
}
],
"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[\u0027addresses\u0027], 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\u0027s API key, including creating inbound email-forwarding routes that can intercept password reset emails, leading to administrator account takeover."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-918",
"description": "CWE-918 Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-22T08:26:38.970Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"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"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-21T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "Mailgun for WordPress \u003c= 2.2.0 - Unauthenticated Server-Side Request Forgery (SSRF) via \u0027addresses\u0027 Array Keys"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-78003",
"datePublished": "2026-08-22T08:26:38.970Z",
"dateReserved": "2026-08-21T19:58:10.111Z",
"dateUpdated": "2026-08-22T08:26:38.970Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-78003 (GCVE-0-2026-78003)
Vulnerability from cvelistv5 – Published: 2026-08-22 08:26 – Updated: 2026-08-22 08:26
VLAI
EPSS
VEX
Title
Mailgun for WordPress <= 2.2.0 - Unauthenticated Server-Side Request Forgery (SSRF) via 'addresses' Array Keys
Summary
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.
Severity
9.8 (Critical)
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
9 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mailgun | Mailgun for WordPress |
Affected:
0 , ≤ 2.2.0
(semver)
|
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Mailgun for WordPress",
"vendor": "mailgun",
"versions": [
{
"lessThanOrEqual": "2.2.0",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Osvaldo Noe Gonzalez Del Rio (Os)"
}
],
"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[\u0027addresses\u0027], 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\u0027s API key, including creating inbound email-forwarding routes that can intercept password reset emails, leading to administrator account takeover."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-918",
"description": "CWE-918 Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-22T08:26:38.970Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"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"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-21T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "Mailgun for WordPress \u003c= 2.2.0 - Unauthenticated Server-Side Request Forgery (SSRF) via \u0027addresses\u0027 Array Keys"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-78003",
"datePublished": "2026-08-22T08:26:38.970Z",
"dateReserved": "2026-08-21T19:58:10.111Z",
"dateUpdated": "2026-08-22T08:26:38.970Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}