Low
Security advisory
A bug causing session fixation in Nextcloud Server prior to 14.0.0, 13.0.3 and 12.0.8 could potentially allow an attacker to obtain access to password protected shares.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-16463
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:04 UTC · Revision 1
Source evidence
A bug causing session fixation in Nextcloud Server prior to 14.0.0, 13.0.3 and 12.0.8 could potentially allow an attacker to obtain access to password protected shares.
osv:CVE-2018-16463
Complete source record
{
"id": "3c2cb90166a21851aa4dec56fb999889387c1b748eaee42230eb635d5aa57207",
"url": "https://osv.dev/vulnerability/CVE-2018-16463",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-16463",
"summary": "A bug causing session fixation in Nextcloud Server prior to 14.0.0, 13.0.3 and 12.0.8 could potentially allow an attacker to obtain access to password protected shares.",
"evidence": "osv:CVE-2018-16463",
"products": [],
"severity": "low",
"structured": {
"id": "CVE-2018-16463",
"aliases": [
"CVE-2018-16463"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/nextcloud/server",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "42d3169e276bda2e2c41849fcc8a6f683719b323"
},
{
"introduced": "3b4285e13f6b1ec074b98466f49e189101f090bc"
},
{
"fixed": "8a0093d9cada749aa0182b1c2248b42e0ea47f0b"
},
{
"introduced": "adcc061166ab86bd39b004bd85847320fdd2d525"
},
{
"last_affected": "c31632ccdf5c9a76499ad36b40c8cf52c1602754"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "12.0.8"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "13.0.0"
},
{
"fixed": "13.0.3"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:beta1:*:*:*:*:*:*",
"range": [
{
"introduced": "14.0.0-beta1"
},
{
"last_affected": "14.0.0-beta1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:beta2:*:*:*:*:*:*",
"range": [
{
"introduced": "14.0.0-beta2"
},
{
"last_affected": "14.0.0-beta2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:beta3:*:*:*:*:*:*",
"range": [
{
"introduced": "14.0.0-beta3"
},
{
"last_affected": "14.0.0-beta3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:beta4:*:*:*:*:*:*",
"range": [
{
"introduced": "14.0.0-beta4"
},
{
"last_affected": "14.0.0-beta4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "14.0.0-rc1"
},
{
"last_affected": "14.0.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "14.0.0-rc2"
},
{
"last_affected": "14.0.0-rc2"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"14.0.0-beta1",
"14.0.0-beta2",
"14.0.0-beta3",
"14.0.0-beta4",
"14.0.0-rc1",
"14.0.0-rc2",
"v14.0.0RC2",
"v14.0.0RC1",
"v14.0.0beta4",
"v14.0.0beta3",
"v14.0.0beta2",
"v14.0.0beta1",
"v13.0.3RC2",
"v12.0.8RC1",
"v13.0.3RC1",
"theming-1.4.5",
"v12.0.7",
"v13.0.2",
"v12.0.7RC1",
"v13.0.2RC1",
"v12.0.6",
"v13.0.1",
"v12.0.6RC1",
"v13.0.1RC1",
"v13.0.0",
"v12.0.5",
"v12.0.5RC3",
"v12.0.5RC2",
"v12.0.5RC1",
"v12.0.4",
"v12.0.4RC3",
"v12.0.4RC2",
"v12.0.4RC1",
"v12.0.3",
"v12.0.3RC2",
"v12.0.3RC1",
"v12.0.1",
"v12.0.1RC5",
"v12.0.1RC4",
"v12.0.1RC3",
"v12.0.1RC2",
"v12.0.1RC1",
"v12.0.0",
"v12.0.0RC3",
"v12.0.0RC2",
"v12.0.0RC1",
"v12.0.0beta4",
"v12.0.0beta3",
"v12.0.0beta2",
"v12.0.0beta1",
"v11.0.0",
"v11.0RC2",
"v9.1.0beta1",
"v9.0.0beta2",
"v9.0beta1",
"v8.2RC1",
"v8.2beta1",
"v8.1RC2",
"v8.1.0beta2",
"v8.1.0beta1",
"v8.1.0alpha2",
"v8.1.0alpha1",
"v8.0.0",
"v8.0.0RC2",
"v8.0.0RC1",
"v8.0.0beta2",
"v8.0.0beta1",
"v8.0.0alpha2",
"v8.0.0alpha1",
"v7.0.0beta1",
"v7.0.0alpha2",
"v6.0.0RC2",
"v6.0.0RC1",
"v6.0.0beta5",
"v6.0.0beta4",
"v6.0.0beta3",
"v6.0.0beta2",
"v6.0.0alpha2",
"v5.0.0",
"v5.0.0RC3",
"v5.0.0RC2",
"v5.0.0RC1",
"v5.0.0beta2",
"v5.0.0beta1",
"v5.0.0alpha1",
"v4.5.0",
"v4.5.0RC3",
"v4.5.0RC2",
"v4.5.0RC1",
"v4.5.0beta4",
"v4.5.0beta3",
"v4.0.6",
"v4.0.5",
"v4.0.4",
"v4.0.1",
"v4.0.0",
"v4.0.0RC2",
"v4.0.0RC",
"v4.0.0beta",
"v3.0",
"v1.0.0beta1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16463.json"
}
}
],
"modified": "2026-10-24T10:30:48.130094084Z",
"provider": "osv",
"references": [
"https://hackerone.com/reports/237184",
"https://nextcloud.com/security/advisory/?id=NC-SA-2018-013"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-16463",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 436692,
"published_at": "2018-10-30T21:29:00.51+00:00"
}