Medium
Security advisory
The MailPoet plugin before 3.23.2 for WordPress allows remote attackers to inject arbitrary web script or HTML using extra parameters in the URL (Reflective Server-Side XSS).
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-11843
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:37 UTC · Revision 1
Source evidence
The MailPoet plugin before 3.23.2 for WordPress allows remote attackers to inject arbitrary web script or HTML using extra parameters in the URL (Reflective Server-Side XSS).
osv:CVE-2019-11843
Complete source record
{
"id": "5aa91900018f953e20b8f803b7893d1a273f3e658a7145a1a7a0efc291d6bbc6",
"url": "https://osv.dev/vulnerability/CVE-2019-11843",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-11843",
"summary": "The MailPoet plugin before 3.23.2 for WordPress allows remote attackers to inject arbitrary web script or HTML using extra parameters in the URL (Reflective Server-Side XSS).",
"evidence": "osv:CVE-2019-11843",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-11843",
"aliases": [
"CVE-2019-11843"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mailpoet/mailpoet",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "8d2d2719695fb0683ee3893cca8f7070986124c8"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:automattic:mailpoet:*:*:*:*:*:wordpress:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "3.23.2"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "8d2d2719695fb0683ee3893cca8f7070986124c8"
}
],
"source": "REFERENCES_TAG",
"original_tag": "3.23.2"
}
]
}
}
],
"versions": [
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"3.23.0",
"3.21.1",
"3.21.0",
"3.19.3",
"3.19.2",
"3.19.0",
"3.18.2",
"3.18.1",
"3.17.2",
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"3.0.0-beta.36.2.0",
"3.0.0-beta.36.1.0",
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"3.0.0-beta.36.0.0",
"3.0.0-beta.35.0.0",
"3.0.0-beta.34.0.0",
"3.0.0-beta.33.1",
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"3.0.0-beta.17",
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"0.0.50",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11843.json"
}
}
],
"modified": "2026-10-20T10:50:48.043065896Z",
"provider": "osv",
"references": [
"https://github.com/mailpoet/mailpoet/releases/tag/3.23.2",
"https://pluginarchive.com/wordpress/mailpoet/v/3-23-2",
"https://wordpress.org/plugins/mailpoet/#developers"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2019-11843",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 382175,
"published_at": "2020-06-02T17:15:11.627+00:00"
}