Medium
otrs2, znuny — security advisory
An attacker who is logged into OTRS as an user with privileges to create and change customer user data may manipulate the CustomerID field to execute JavaScript code that runs immediatly after the data is saved.The issue onlyoccurs if the configuration for AdminCustomerUser::UseAutoComplete was changed before. This issue affects OTRS: from 7.0.X before 7.0.47, from 8.0.X before 8.0.37; ((OTRS)) Community Edition: from 6.0.X through 6.0.34.
- Products
- otrs2, znuny
- Affected versions
- 4.0.10-1, 5.0.1-1, 5.0.1-2, 5.0.2-1, 5.0.23-1, 5.0.24-1, 5.0.3-1, 5.0.5-1, 5.0.6-1, 5.0.7-1, 6.0.1-1, 6.0.2-1, 6.0.20-1, 6.0.23-2, 6.0.24-1, 6.0.25-1, 6.0.25-2, 6.0.25-3, 6.0.26-1, 6.0.3-1, 6.0.32-6, 6.0.4-1, 6.0.5-1, 6.1.2-1, 6.2.1-1, 6.2.2-2, 6.5.14-1, 6.5.15-2, 6.5.18-1, 6.5.20-1, 6.5.21-1, 6.5.22-1, 6.5.23-1, 6.5.3-1, 6.5.4-1, 6.5.5-1, 6.5.6-1
- Fixed versions
- Not specified
- CVEs
- CVE-2023-5421
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:06 UTC · Revision 1
Source evidence
An attacker who is logged into OTRS as an user with privileges to create and change customer user data may manipulate the CustomerID field to execute JavaScript code that runs immediatly after the data is saved.The issue onlyoccurs if the configuration for AdminCustomerUser::UseAutoComplete was changed before. This issue affects OTRS: from 7.0.X before 7.0.47, from 8.0.X before 8.0.37; ((OTRS)) Community Edition: from 6.0.X through 6.0.34.
osv:UBUNTU-CVE-2023-5421
otrs2
Fixed versions: Not specified
otrs2
Fixed versions: Not specified
otrs2
Fixed versions: Not specified
otrs2
Fixed versions: Not specified
znuny
Fixed versions: Not specified
znuny
Fixed versions: Not specified
znuny
Fixed versions: Not specified
znuny
Fixed versions: Not specified
Complete source record
{
"id": "983b2885cb2c09913b9ea14d717f6310e29660546d3a455eb3cf66a9f3fda429",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-5421",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2023-5421",
"summary": "An attacker who is logged into OTRS as an user with privileges to create and change customer user data may manipulate the CustomerID field to execute JavaScript code that runs immediatly after the data is saved.The issue onlyoccurs if the configuration for AdminCustomerUser::UseAutoComplete was changed before. This issue affects OTRS: from 7.0.X before 7.0.47, from 8.0.X before 8.0.37; ((OTRS)) Community Edition: from 6.0.X through 6.0.34.",
"evidence": "osv:UBUNTU-CVE-2023-5421",
"products": [
{
"name": {
"value": "otrs2",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "4.0.10-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.1-2",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.2-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.5-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.6-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.0.7-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "otrs2",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "5.0.23-1",
"evidence": "/affected/1/versions"
},
{
"value": "5.0.24-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.2-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.3-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.4-1",
"evidence": "/affected/1/versions"
},
{
"value": "6.0.5-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.0.20-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.23-2",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.24-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.25-1",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.25-2",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.25-3",
"evidence": "/affected/2/versions"
},
{
"value": "6.0.26-1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "otrs2",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.0.32-6",
"evidence": "/affected/3/versions"
},
{
"value": "6.1.2-1",
"evidence": "/affected/3/versions"
},
{
"value": "6.2.1-1",
"evidence": "/affected/3/versions"
},
{
"value": "6.2.2-2",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "znuny",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.5.3-1",
"evidence": "/affected/4/versions"
},
{
"value": "6.5.4-1",
"evidence": "/affected/4/versions"
},
{
"value": "6.5.5-1",
"evidence": "/affected/4/versions"
},
{
"value": "6.5.6-1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "znuny",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.5.14-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.5.15-2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "znuny",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.5.18-1",
"evidence": "/affected/6/versions"
},
{
"value": "6.5.20-1",
"evidence": "/affected/6/versions"
},
{
"value": "6.5.21-1",
"evidence": "/affected/6/versions"
},
{
"value": "6.5.22-1",
"evidence": "/affected/6/versions"
},
{
"value": "6.5.23-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "znuny",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.5.15-2",
"evidence": "/affected/7/versions"
},
{
"value": "6.5.18-1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2023-5421",
"aliases": [
"UBUNTU-CVE-2023-5421"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "low"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "otrs2",
"purl": "pkg:deb/ubuntu/otrs2?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"4.0.10-1",
"5.0.1-1",
"5.0.1-2",
"5.0.2-1",
"5.0.3-1",
"5.0.5-1",
"5.0.6-1",
"5.0.7-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-5421.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs",
"binary_version": "5.0.7-1"
},
{
"binary_name": "otrs2",
"binary_version": "5.0.7-1"
}
],
"priority_reason": "Requires a non-default configuration to be vulnerable"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "otrs2",
"purl": "pkg:deb/ubuntu/otrs2?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"5.0.23-1",
"5.0.24-1",
"6.0.1-1",
"6.0.2-1",
"6.0.3-1",
"6.0.4-1",
"6.0.5-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-5421.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs",
"binary_version": "6.0.5-1"
},
{
"binary_name": "otrs2",
"binary_version": "6.0.5-1"
}
],
"priority_reason": "Requires a non-default configuration to be vulnerable"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "otrs2",
"purl": "pkg:deb/ubuntu/otrs2?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"6.0.20-1",
"6.0.23-2",
"6.0.24-1",
"6.0.25-1",
"6.0.25-2",
"6.0.25-3",
"6.0.26-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-5421.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs",
"binary_version": "6.0.26-1"
},
{
"binary_name": "otrs2",
"binary_version": "6.0.26-1"
}
],
"priority_reason": "Requires a non-default configuration to be vulnerable"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "otrs2",
"purl": "pkg:deb/ubuntu/otrs2?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
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"6.1.2-1",
"6.2.1-1",
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],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-5421.json"
},
"ecosystem_specific": {
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{
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}
},
{
"ranges": [
{
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],
"package": {
"name": "znuny",
"purl": "pkg:deb/ubuntu/znuny?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"6.5.3-1",
"6.5.4-1",
"6.5.5-1",
"6.5.6-1"
],
"database_specific": {
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},
"ecosystem_specific": {
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{
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},
{
"binary_name": "znuny",
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}
],
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}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
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],
"package": {
"name": "znuny",
"purl": "pkg:deb/ubuntu/znuny?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"6.5.14-1",
"6.5.15-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-5421.json"
},
"ecosystem_specific": {
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{
"binary_name": "otrs2",
"binary_version": "6.5.15-2"
},
{
"binary_name": "znuny",
"binary_version": "6.5.15-2"
}
],
"priority_reason": "Requires a non-default configuration to be vulnerable"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "znuny",
"purl": "pkg:deb/ubuntu/znuny?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
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"6.5.20-1",
"6.5.21-1",
"6.5.22-1",
"6.5.23-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-5421.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.5.23-1"
},
{
"binary_name": "znuny",
"binary_version": "6.5.23-1"
}
],
"priority_reason": "Requires a non-default configuration to be vulnerable"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "znuny",
"purl": "pkg:deb/ubuntu/znuny?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"6.5.15-2",
"6.5.18-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-5421.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.5.18-1"
},
{
"binary_name": "znuny",
"binary_version": "6.5.18-1"
}
],
"priority_reason": "Requires a non-default configuration to be vulnerable"
}
}
],
"modified": "2026-10-17T12:56:27.322918059Z",
"provider": "osv",
"upstream": [
"CVE-2023-5421"
],
"references": [
"https://ubuntu.com/security/CVE-2023-5421",
"https://otrs.com/release-notes/otrs-security-advisory-2023-09/",
"https://www.cve.org/CVERecord?id=CVE-2023-5421"
]
},
"related_cves": [
{
"value": "CVE-2023-5421",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 355694,
"published_at": "2023-10-16T09:15:00+00:00"
}