Medium
adminer — security advisory
Adminer before 6.0.2 contains a cross-site scripting vulnerability where the CONNECTION_ID() database result is interpolated into JavaScript without proper escaping, allowing a malicious database server to execute arbitrary JavaScript in the authenticated Adminer origin. In co-located deployments where the database has FILE privileges and can write to the webroot, attackers can use the XSS to submit authenticated SQL requests that write PHP files via INTO DUMPFILE, achieving remote code execution as the web server account.
- Products
- adminer
- Affected versions
- 4.2.1-1, 4.2.1-1ubuntu1, 4.2.1-1ubuntu1+esm1, 4.3.1-2, 4.5.0-1, 4.6.1-1, 4.6.2-1, 4.6.2-1ubuntu0.1~esm1, 4.7.2-1, 4.7.4-1, 4.7.5-1, 4.7.6-1, 4.7.6-1ubuntu0.1~esm1, 4.7.9-2, 4.8.1-1, 4.8.1-1ubuntu1, 4.8.1-2, 5.2.1+dfsg-1, 5.3.0+dfsg-1, 5.4.0+dfsg-1, 5.4.1+dfsg-1, 5.4.2+dfsg-1, 5.4.4+dfsg-1, 6.0.0-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-100695
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:56 UTC · Revision 1
Source evidence
Adminer before 6.0.2 contains a cross-site scripting vulnerability where the CONNECTION_ID() database result is interpolated into JavaScript without proper escaping, allowing a malicious database server to execute arbitrary JavaScript in the authenticated Adminer origin. In co-located deployments where the database has FILE privileges and can write to the webroot, attackers can use the XSS to submit authenticated SQL requests that write PHP files via INTO DUMPFILE, achieving remote code execution as the web server account.
osv:UBUNTU-CVE-2026-100695
adminer
Fixed versions: Not specified
adminer
Fixed versions: Not specified
adminer
Fixed versions: Not specified
adminer
Fixed versions: Not specified
adminer
Fixed versions: Not specified
adminer
Fixed versions: Not specified
adminer
Fixed versions: Not specified
Complete source record
{
"id": "1359efc3c6b3f51882b8dd4901e6cccd8af1e64623e7435aac42d390a6ffa9ad",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-100695",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-100695",
"summary": "Adminer before 6.0.2 contains a cross-site scripting vulnerability where the CONNECTION_ID() database result is interpolated into JavaScript without proper escaping, allowing a malicious database server to execute arbitrary JavaScript in the authenticated Adminer origin. In co-located deployments where the database has FILE privileges and can write to the webroot, attackers can use the XSS to submit authenticated SQL requests that write PHP files via INTO DUMPFILE, achieving remote code execution as the web server account.",
"evidence": "osv:UBUNTU-CVE-2026-100695",
"products": [
{
"name": {
"value": "adminer",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.2.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "4.2.1-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "4.2.1-1ubuntu1+esm1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "4.3.1-2",
"evidence": "/affected/1/versions"
},
{
"value": "4.5.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.6.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.6.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "4.6.2-1ubuntu0.1~esm1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "adminer",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.7.2-1",
"evidence": "/affected/2/versions"
},
{
"value": "4.7.4-1",
"evidence": "/affected/2/versions"
},
{
"value": "4.7.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "4.7.6-1",
"evidence": "/affected/2/versions"
},
{
"value": "4.7.6-1ubuntu0.1~esm1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "adminer",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.7.9-2",
"evidence": "/affected/3/versions"
},
{
"value": "4.8.1-1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "adminer",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.8.1-1",
"evidence": "/affected/4/versions"
},
{
"value": "4.8.1-1ubuntu1",
"evidence": "/affected/4/versions"
},
{
"value": "4.8.1-2",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "adminer",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.4.1+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "5.4.2+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "5.4.4+dfsg-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.0.0-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "adminer",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.2.1+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.3.0+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.4.0+dfsg-1",
"evidence": "/affected/6/versions"
},
{
"value": "5.4.1+dfsg-1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-100695",
"aliases": [
"UBUNTU-CVE-2026-100695"
],
"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": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"4.2.1-1",
"4.2.1-1ubuntu1",
"4.2.1-1ubuntu1+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100695.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.2.1-1ubuntu1+esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"4.3.1-2",
"4.5.0-1",
"4.6.1-1",
"4.6.2-1",
"4.6.2-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100695.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.6.2-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"4.7.2-1",
"4.7.4-1",
"4.7.5-1",
"4.7.6-1",
"4.7.6-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100695.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.7.6-1ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
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],
"package": {
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"4.7.9-2",
"4.8.1-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100695.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.8.1-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
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}
],
"package": {
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"4.8.1-1",
"4.8.1-1ubuntu1",
"4.8.1-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100695.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "4.8.1-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"5.4.1+dfsg-1",
"5.4.2+dfsg-1",
"5.4.4+dfsg-1",
"6.0.0-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100695.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "6.0.0-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "adminer",
"purl": "pkg:deb/ubuntu/adminer?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"5.2.1+dfsg-1",
"5.3.0+dfsg-1",
"5.4.0+dfsg-1",
"5.4.1+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-100695.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "adminer",
"binary_version": "5.4.1+dfsg-1"
}
]
}
}
],
"modified": "2026-10-17T12:57:52.993024872Z",
"provider": "osv",
"upstream": [
"CVE-2026-100695"
],
"references": [
"https://ubuntu.com/security/CVE-2026-100695",
"https://www.cve.org/CVERecord?id=CVE-2026-100695",
"https://github.com/vrana/adminer/security/advisories/GHSA-7c5h-q78c-fpxx",
"https://www.vulncheck.com/advisories/adminer-before-6.0.2-xss-via-connection-id-escalating-to-rce"
]
},
"related_cves": [
{
"value": "CVE-2026-100695",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 357713,
"published_at": "2026-09-26T14:16:00+00:00"
}