Medium
wordpress — security advisory
In WordPress before 5.2.3, validation and sanitization of a URL in wp_validate_redirect in wp-includes/pluggable.php could lead to an open redirect if a provided URL path does not start with a forward slash.
- Products
- wordpress
- Affected versions
- 4.3+dfsg-1, 4.3.1+dfsg-1, 4.4+dfsg-1, 4.4.1+dfsg-1, 4.4.2+dfsg-1, 4.4.2+dfsg-1ubuntu1, 4.8.2+dfsg-2, 4.8.3+dfsg-1, 4.9.1+dfsg-1, 4.9.2+dfsg-1, 4.9.4+dfsg-1, 4.9.5+dfsg1-1, 5.2.2+dfsg1-1, 5.2.4+dfsg1-1, 5.3.2+dfsg1-1, 5.3.2+dfsg1-1ubuntu1, 5.7.1+dfsg1-2ubuntu1, 5.8.1+dfsg1-2ubuntu1, 5.8.2+dfsg1-1ubuntu1, 5.8.3+dfsg1-1ubuntu1, 5.8.3+dfsg1-1ubuntu1.1, 6.2+dfsg1-1ubuntu1, 6.4.3+dfsg1-1ubuntu1, 6.7.2+dfsg1-1.1ubuntu1, 6.7.2+dfsg1-1.1ubuntu2
- Fixed versions
- Not specified
- CVEs
- CVE-2019-16220
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:33 UTC · Revision 1
Source evidence
In WordPress before 5.2.3, validation and sanitization of a URL in wp_validate_redirect in wp-includes/pluggable.php could lead to an open redirect if a provided URL path does not start with a forward slash.
osv:UBUNTU-CVE-2019-16220
wordpress
Fixed versions: Not specified
wordpress
Fixed versions: Not specified
wordpress
Fixed versions: Not specified
wordpress
Fixed versions: Not specified
wordpress
Fixed versions: Not specified
wordpress
Fixed versions: Not specified
wordpress
Fixed versions: Not specified
wordpress
Fixed versions: Not specified
Complete source record
{
"id": "b348e8df97031f3cae13697d4a356d6000e7ff26109bb6f1af1e4de7adc42b24",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2019-16220",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2019-16220",
"summary": "In WordPress before 5.2.3, validation and sanitization of a URL in wp_validate_redirect in wp-includes/pluggable.php could lead to an open redirect if a provided URL path does not start with a forward slash.",
"evidence": "osv:UBUNTU-CVE-2019-16220",
"products": [
{
"name": {
"value": "wordpress",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.3+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.3.1+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.4+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.4.1+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.4.2+dfsg-1",
"evidence": "/affected/0/versions"
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{
"value": "4.4.2+dfsg-1ubuntu1",
"evidence": "/affected/0/versions"
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{
"name": {
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"evidence": "/affected/1/package/name"
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"affected_versions": [
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"evidence": "/affected/1/versions"
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{
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"evidence": "/affected/1/versions"
},
{
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"evidence": "/affected/1/versions"
},
{
"value": "4.9.2+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.9.4+dfsg-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.9.5+dfsg1-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "5.2.2+dfsg1-1",
"evidence": "/affected/2/versions"
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{
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"evidence": "/affected/2/versions"
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{
"value": "5.3.2+dfsg1-1",
"evidence": "/affected/2/versions"
},
{
"value": "5.3.2+dfsg1-1ubuntu1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "wordpress",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.7.1+dfsg1-2ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "5.8.1+dfsg1-2ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "5.8.2+dfsg1-1ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "5.8.3+dfsg1-1ubuntu1",
"evidence": "/affected/3/versions"
},
{
"value": "5.8.3+dfsg1-1ubuntu1.1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "wordpress",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.2+dfsg1-1ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "6.4.3+dfsg1-1ubuntu1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "wordpress",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.7.2+dfsg1-1.1ubuntu1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "wordpress",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.7.2+dfsg1-1.1ubuntu2",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "wordpress",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.7.2+dfsg1-1.1ubuntu1",
"evidence": "/affected/7/versions"
},
{
"value": "6.7.2+dfsg1-1.1ubuntu2",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2019-16220",
"aliases": [
"UBUNTU-CVE-2019-16220"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "wordpress",
"purl": "pkg:deb/ubuntu/wordpress?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"4.3+dfsg-1",
"4.3.1+dfsg-1",
"4.4+dfsg-1",
"4.4.1+dfsg-1",
"4.4.2+dfsg-1",
"4.4.2+dfsg-1ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16220.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "wordpress",
"binary_version": "4.4.2+dfsg-1ubuntu1"
},
{
"binary_name": "wordpress-l10n",
"binary_version": "4.4.2+dfsg-1ubuntu1"
},
{
"binary_name": "wordpress-theme-twentyfifteen",
"binary_version": "4.4.2+dfsg-1ubuntu1"
},
{
"binary_name": "wordpress-theme-twentyfourteen",
"binary_version": "4.4.2+dfsg-1ubuntu1"
},
{
"binary_name": "wordpress-theme-twentysixteen",
"binary_version": "4.4.2+dfsg-1ubuntu1"
}
]
}
},
{
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"package": {
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"purl": "pkg:deb/ubuntu/wordpress?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"4.8.2+dfsg-2",
"4.8.3+dfsg-1",
"4.9.1+dfsg-1",
"4.9.2+dfsg-1",
"4.9.4+dfsg-1",
"4.9.5+dfsg1-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16220.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "wordpress",
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},
{
"binary_name": "wordpress-l10n",
"binary_version": "4.9.5+dfsg1-1"
},
{
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},
{
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{
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]
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},
{
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"package": {
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"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"5.2.2+dfsg1-1",
"5.2.4+dfsg1-1",
"5.3.2+dfsg1-1",
"5.3.2+dfsg1-1ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16220.json"
},
"ecosystem_specific": {
"binaries": [
{
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},
{
"binary_name": "wordpress-l10n",
"binary_version": "5.3.2+dfsg1-1ubuntu1"
},
{
"binary_name": "wordpress-theme-twentynineteen",
"binary_version": "5.3.2+dfsg1-1ubuntu1"
},
{
"binary_name": "wordpress-theme-twentyseventeen",
"binary_version": "5.3.2+dfsg1-1ubuntu1"
},
{
"binary_name": "wordpress-theme-twentysixteen",
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}
]
}
},
{
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],
"package": {
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"ecosystem": "Ubuntu:22.04:LTS"
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"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
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},
{
"binary_name": "wordpress-l10n",
"binary_version": "5.8.3+dfsg1-1ubuntu1.1"
},
{
"binary_name": "wordpress-theme-twentynineteen",
"binary_version": "5.8.3+dfsg1-1ubuntu1.1"
},
{
"binary_name": "wordpress-theme-twentytwenty",
"binary_version": "5.8.3+dfsg1-1ubuntu1.1"
},
{
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}
]
}
},
{
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],
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],
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},
"ecosystem_specific": {
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{
"binary_name": "wordpress",
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},
{
"binary_name": "wordpress-l10n",
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},
{
"binary_name": "wordpress-theme-twentytwentyfour",
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{
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{
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},
{
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"ecosystem": "Ubuntu:25.10"
},
"versions": [
"6.7.2+dfsg1-1.1ubuntu1"
],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "wordpress",
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},
{
"binary_name": "wordpress-l10n",
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},
{
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},
{
"binary_name": "wordpress-theme-twentytwentyfour",
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},
{
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}
]
}
},
{
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{
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}
],
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},
"versions": [
"6.7.2+dfsg1-1.1ubuntu2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16220.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "wordpress",
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},
{
"binary_name": "wordpress-l10n",
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},
{
"binary_name": "wordpress-theme-twentytwentyfive",
"binary_version": "6.7.2+dfsg1-1.1ubuntu2"
},
{
"binary_name": "wordpress-theme-twentytwentyfour",
"binary_version": "6.7.2+dfsg1-1.1ubuntu2"
},
{
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}
]
}
},
{
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"ecosystem": "Ubuntu:26.04:LTS"
},
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"6.7.2+dfsg1-1.1ubuntu2"
],
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "wordpress",
"binary_version": "6.7.2+dfsg1-1.1ubuntu2"
},
{
"binary_name": "wordpress-l10n",
"binary_version": "6.7.2+dfsg1-1.1ubuntu2"
},
{
"binary_name": "wordpress-theme-twentytwentyfive",
"binary_version": "6.7.2+dfsg1-1.1ubuntu2"
},
{
"binary_name": "wordpress-theme-twentytwentyfour",
"binary_version": "6.7.2+dfsg1-1.1ubuntu2"
},
{
"binary_name": "wordpress-theme-twentytwentythree",
"binary_version": "6.7.2+dfsg1-1.1ubuntu2"
}
]
}
}
],
"modified": "2026-10-17T12:55:41.727985369Z",
"provider": "osv",
"upstream": [
"CVE-2019-16220"
],
"references": [
"https://ubuntu.com/security/CVE-2019-16220",
"https://core.trac.wordpress.org/changeset/45971",
"https://github.com/WordPress/WordPress/commit/c86ee39ff4c1a79b93c967eb88522f5c09614a28",
"https://wordpress.org/news/2019/09/wordpress-5-2-3-security-and-maintenance-release/",
"https://www.cve.org/CVERecord?id=CVE-2019-16220"
]
},
"related_cves": [
{
"value": "CVE-2019-16220",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 353981,
"published_at": "2019-09-11T14:15:00+00:00"
}