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6 vulnerabilities found for MC4WP: Mailchimp for WordPress by dvankooten
CVE-2026-1781 (GCVE-0-2026-1781)
Vulnerability from nvd – Published: 2026-03-11 01:22 – Updated: 2026-04-08 16:35
VLAI?
Title
MC4WP: Mailchimp for WordPress <= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion
Summary
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the `_mc4wp_action` POST parameter without validation, allowing unauthenticated attackers to force the form to process unsubscribe actions instead of subscribe actions. This makes it possible for unauthenticated attackers to arbitrarily unsubscribe any email address from the connected Mailchimp audience via the `_mc4wp_action` parameter, granted they can obtain the form ID (which is publicly exposed in the HTML source).
Severity ?
6.5 (Medium)
CWE
- CWE-862 - Missing Authorization
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| dvankooten | MC4WP: Mailchimp for WordPress |
Affected:
0 , ≤ 4.11.1
(semver)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-1781",
"options": [
{
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{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-11T15:49:58.367011Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-11T15:50:08.687Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "MC4WP: Mailchimp for WordPress",
"vendor": "dvankooten",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Sarawut Poolkhet"
}
],
"descriptions": [
{
"lang": "en",
"value": "The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the `_mc4wp_action` POST parameter without validation, allowing unauthenticated attackers to force the form to process unsubscribe actions instead of subscribe actions. This makes it possible for unauthenticated attackers to arbitrarily unsubscribe any email address from the connected Mailchimp audience via the `_mc4wp_action` parameter, granted they can obtain the form ID (which is publicly exposed in the HTML source)."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.5,
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T16:35:55.094Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/10262aa9-5656-4a2b-aeb5-060018798369?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.11.1/includes/forms/class-form-listener.php#L53"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.11.1/includes/forms/class-form-listener.php#L207"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.11.1/includes/forms/class-form.php#L461"
},
{
"url": "https://cwe.mitre.org/data/definitions/862.html"
},
{
"url": "https://github.com/ibericode/mailchimp-for-wordpress/commit/5fdebc2a5e22d11287d011697a6b09331bd96fa5"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3477825%40mailchimp-for-wp%2Ftrunk\u0026old=3443118%40mailchimp-for-wp%2Ftrunk\u0026sfp_email=\u0026sfph_mail="
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-03T12:30:59.000Z",
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},
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"value": "Disclosed"
}
],
"title": "MC4WP: Mailchimp for WordPress \u003c= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-1781",
"datePublished": "2026-03-11T01:22:03.740Z",
"dateReserved": "2026-02-02T20:27:48.205Z",
"dateUpdated": "2026-04-08T16:35:55.094Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-8680 (GCVE-0-2024-8680)
Vulnerability from nvd – Published: 2024-09-21 08:35 – Updated: 2026-04-08 17:14
VLAI?
Title
MailChimp for Wordpress <= 4.9.16 - Authenticated (Administrator+) Stored Cross-Site Scripting
Summary
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Severity ?
4.4 (Medium)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| dvankooten | MC4WP: Mailchimp for WordPress |
Affected:
0 , ≤ 4.9.16
(semver)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-8680",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-23T14:07:22.190701Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-23T14:07:31.284Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "MC4WP: Mailchimp for WordPress",
"vendor": "dvankooten",
"versions": [
{
"lessThanOrEqual": "4.9.16",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Jorge Diaz"
}
],
"descriptions": [
{
"lang": "en",
"value": "The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-80",
"description": "CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T17:14:21.439Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/aa464547-0380-4b91-a5ea-0cd9a66da7a7?source=cve"
},
{
"url": "https://github.com/ibericode/mailchimp-for-wordpress/blob/main/includes/views/parts/lists-overview-details.php"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/trunk/includes/views/parts/lists-overview-details.php"
},
{
"url": "https://github.com/ibericode/mailchimp-for-wordpress/commit/60c6bfc260a7974f791af1d4ad4a032a3e0bdd3c"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3153075%40mailchimp-for-wp%2Ftrunk\u0026old=3149806%40mailchimp-for-wp%2Ftrunk\u0026sfp_email=\u0026sfph_mail="
}
],
"timeline": [
{
"lang": "en",
"time": "2024-09-20T20:24:42.000Z",
"value": "Disclosed"
}
],
"title": "MailChimp for Wordpress \u003c= 4.9.16 - Authenticated (Administrator+) Stored Cross-Site Scripting"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2024-8680",
"datePublished": "2024-09-21T08:35:54.533Z",
"dateReserved": "2024-09-10T20:20:15.625Z",
"dateUpdated": "2026-04-08T17:14:21.439Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-8850 (GCVE-0-2024-8850)
Vulnerability from nvd – Published: 2024-09-19 03:59 – Updated: 2024-09-25 17:17
VLAI?
Title
MC4WP: Mailchimp for WordPress 4.9.9 - 4.9.16 - Reflected Cross-Site Scripting
Summary
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'email' parameter when a placeholder such as {email} is used for the field in versions 4.9.9 to 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Severity ?
6.1 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| dvankooten | MC4WP: Mailchimp for WordPress |
Affected:
4.9.9 , ≤ 4.9.16
(semver)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-8850",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-19T13:50:46.208642Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-19T13:50:57.237Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"product": "MC4WP: Mailchimp for WordPress",
"vendor": "dvankooten",
"versions": [
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"lessThanOrEqual": "4.9.16",
"status": "affected",
"version": "4.9.9",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "kauenavarro"
}
],
"descriptions": [
{
"lang": "en",
"value": "The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the \u0027email\u0027 parameter when a placeholder such as {email} is used for the field in versions 4.9.9 to 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-09-25T17:17:05.117Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1d2ba8ea-a75f-4069-b67d-f832acb1deef?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.9.16/config/default-form-content.php#L8"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3153075%40mailchimp-for-wp\u0026new=3153075%40mailchimp-for-wp\u0026sfp_email=\u0026sfph_mail="
}
],
"timeline": [
{
"lang": "en",
"time": "2024-09-18T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "MC4WP: Mailchimp for WordPress 4.9.9 - 4.9.16 - Reflected Cross-Site Scripting"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2024-8850",
"datePublished": "2024-09-19T03:59:14.402Z",
"dateReserved": "2024-09-13T18:20:49.966Z",
"dateUpdated": "2024-09-25T17:17:05.117Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2026-1781 (GCVE-0-2026-1781)
Vulnerability from cvelistv5 – Published: 2026-03-11 01:22 – Updated: 2026-04-08 16:35
VLAI?
Title
MC4WP: Mailchimp for WordPress <= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion
Summary
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the `_mc4wp_action` POST parameter without validation, allowing unauthenticated attackers to force the form to process unsubscribe actions instead of subscribe actions. This makes it possible for unauthenticated attackers to arbitrarily unsubscribe any email address from the connected Mailchimp audience via the `_mc4wp_action` parameter, granted they can obtain the form ID (which is publicly exposed in the HTML source).
Severity ?
6.5 (Medium)
CWE
- CWE-862 - Missing Authorization
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| dvankooten | MC4WP: Mailchimp for WordPress |
Affected:
0 , ≤ 4.11.1
(semver)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-1781",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-11T15:49:58.367011Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-11T15:50:08.687Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"defaultStatus": "unaffected",
"product": "MC4WP: Mailchimp for WordPress",
"vendor": "dvankooten",
"versions": [
{
"lessThanOrEqual": "4.11.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Sarawut Poolkhet"
}
],
"descriptions": [
{
"lang": "en",
"value": "The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the `_mc4wp_action` POST parameter without validation, allowing unauthenticated attackers to force the form to process unsubscribe actions instead of subscribe actions. This makes it possible for unauthenticated attackers to arbitrarily unsubscribe any email address from the connected Mailchimp audience via the `_mc4wp_action` parameter, granted they can obtain the form ID (which is publicly exposed in the HTML source)."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-862",
"description": "CWE-862 Missing Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-08T16:35:55.094Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/10262aa9-5656-4a2b-aeb5-060018798369?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.11.1/includes/forms/class-form-listener.php#L53"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.11.1/includes/forms/class-form-listener.php#L207"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.11.1/includes/forms/class-form.php#L461"
},
{
"url": "https://cwe.mitre.org/data/definitions/862.html"
},
{
"url": "https://github.com/ibericode/mailchimp-for-wordpress/commit/5fdebc2a5e22d11287d011697a6b09331bd96fa5"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3477825%40mailchimp-for-wp%2Ftrunk\u0026old=3443118%40mailchimp-for-wp%2Ftrunk\u0026sfp_email=\u0026sfph_mail="
}
],
"timeline": [
{
"lang": "en",
"time": "2026-02-03T12:30:59.000Z",
"value": "Vendor Notified"
},
{
"lang": "en",
"time": "2026-03-10T13:11:15.000Z",
"value": "Disclosed"
}
],
"title": "MC4WP: Mailchimp for WordPress \u003c= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-1781",
"datePublished": "2026-03-11T01:22:03.740Z",
"dateReserved": "2026-02-02T20:27:48.205Z",
"dateUpdated": "2026-04-08T16:35:55.094Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2024-8680 (GCVE-0-2024-8680)
Vulnerability from cvelistv5 – Published: 2024-09-21 08:35 – Updated: 2026-04-08 17:14
VLAI?
Title
MailChimp for Wordpress <= 4.9.16 - Authenticated (Administrator+) Stored Cross-Site Scripting
Summary
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Severity ?
4.4 (Medium)
CWE
- CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| dvankooten | MC4WP: Mailchimp for WordPress |
Affected:
0 , ≤ 4.9.16
(semver)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-8680",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-23T14:07:22.190701Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-23T14:07:31.284Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "MC4WP: Mailchimp for WordPress",
"vendor": "dvankooten",
"versions": [
{
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"type": "finder",
"value": "Jorge Diaz"
}
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"lang": "en",
"value": "The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled."
}
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"metrics": [
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"shortName": "Wordfence"
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{
"url": "https://github.com/ibericode/mailchimp-for-wordpress/blob/main/includes/views/parts/lists-overview-details.php"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/trunk/includes/views/parts/lists-overview-details.php"
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"url": "https://github.com/ibericode/mailchimp-for-wordpress/commit/60c6bfc260a7974f791af1d4ad4a032a3e0bdd3c"
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"timeline": [
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"lang": "en",
"time": "2024-09-20T20:24:42.000Z",
"value": "Disclosed"
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],
"title": "MailChimp for Wordpress \u003c= 4.9.16 - Authenticated (Administrator+) Stored Cross-Site Scripting"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2024-8680",
"datePublished": "2024-09-21T08:35:54.533Z",
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CVE-2024-8850 (GCVE-0-2024-8850)
Vulnerability from cvelistv5 – Published: 2024-09-19 03:59 – Updated: 2024-09-25 17:17
VLAI?
Title
MC4WP: Mailchimp for WordPress 4.9.9 - 4.9.16 - Reflected Cross-Site Scripting
Summary
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'email' parameter when a placeholder such as {email} is used for the field in versions 4.9.9 to 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Severity ?
6.1 (Medium)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| dvankooten | MC4WP: Mailchimp for WordPress |
Affected:
4.9.9 , ≤ 4.9.16
(semver)
|
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2024-8850",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-19T13:50:46.208642Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-19T13:50:57.237Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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{
"defaultStatus": "unaffected",
"product": "MC4WP: Mailchimp for WordPress",
"vendor": "dvankooten",
"versions": [
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}
]
}
],
"credits": [
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"lang": "en",
"type": "finder",
"value": "kauenavarro"
}
],
"descriptions": [
{
"lang": "en",
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}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
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"providerMetadata": {
"dateUpdated": "2024-09-25T17:17:05.117Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
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"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1d2ba8ea-a75f-4069-b67d-f832acb1deef?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/mailchimp-for-wp/tags/4.9.16/config/default-form-content.php#L8"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3153075%40mailchimp-for-wp\u0026new=3153075%40mailchimp-for-wp\u0026sfp_email=\u0026sfph_mail="
}
],
"timeline": [
{
"lang": "en",
"time": "2024-09-18T00:00:00.000Z",
"value": "Disclosed"
}
],
"title": "MC4WP: Mailchimp for WordPress 4.9.9 - 4.9.16 - Reflected Cross-Site Scripting"
}
},
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"datePublished": "2024-09-19T03:59:14.402Z",
"dateReserved": "2024-09-13T18:20:49.966Z",
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"state": "PUBLISHED"
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