Medium
otrs2, znuny — security advisory
Znuny before LTS 6.5.22 allows AgentTicketEmailResend template XSS.
- 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, 6.5.15-2, 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-2026-77506
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:19 UTC · Revision 1
Source evidence
Znuny before LTS 6.5.22 allows AgentTicketEmailResend template XSS.
osv:UBUNTU-CVE-2026-77506
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
Complete source record
{
"id": "78f207b182bc9df49e6f6b3bdc6abaefe50abcaa382319b3df0e599f2afd2fce",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-77506",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-77506",
"summary": "Znuny before LTS 6.5.22 allows AgentTicketEmailResend template XSS.",
"evidence": "osv:UBUNTU-CVE-2026-77506",
"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": {
"value": "otrs2",
"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": "6.5.18-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.5.20-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.5.21-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.5.22-1",
"evidence": "/affected/5/versions"
},
{
"value": "6.5.23-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "znuny",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "6.5.15-2",
"evidence": "/affected/6/versions"
},
{
"value": "6.5.18-1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-77506",
"aliases": [
"UBUNTU-CVE-2026-77506"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"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/2026/UBUNTU-CVE-2026-77506.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs",
"binary_version": "5.0.7-1"
},
{
"binary_name": "otrs2",
"binary_version": "5.0.7-1"
}
]
}
},
{
"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/2026/UBUNTU-CVE-2026-77506.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs",
"binary_version": "6.0.5-1"
},
{
"binary_name": "otrs2",
"binary_version": "6.0.5-1"
}
]
}
},
{
"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/2026/UBUNTU-CVE-2026-77506.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs",
"binary_version": "6.0.26-1"
},
{
"binary_name": "otrs2",
"binary_version": "6.0.26-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "otrs2",
"purl": "pkg:deb/ubuntu/otrs2?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"6.0.32-6",
"6.1.2-1",
"6.2.1-1",
"6.2.2-2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77506.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.2.2-2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"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": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-77506.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.5.6-1"
},
{
"binary_name": "znuny",
"binary_version": "6.5.6-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "znuny",
"purl": "pkg:deb/ubuntu/znuny?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"6.5.18-1",
"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/2026/UBUNTU-CVE-2026-77506.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.5.23-1"
},
{
"binary_name": "znuny",
"binary_version": "6.5.23-1"
}
]
}
},
{
"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/2026/UBUNTU-CVE-2026-77506.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "otrs2",
"binary_version": "6.5.18-1"
},
{
"binary_name": "znuny",
"binary_version": "6.5.18-1"
}
]
}
}
],
"modified": "2026-10-17T13:01:07.892632525Z",
"provider": "osv",
"upstream": [
"CVE-2026-77506"
],
"references": [
"https://ubuntu.com/security/CVE-2026-77506",
"https://www.cve.org/CVERecord?id=CVE-2026-77506",
"https://www.znuny.org/en/advisories/zsa-2026-12"
]
},
"related_cves": [
{
"value": "CVE-2026-77506",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361043,
"published_at": "2026-08-20T21:17:00+00:00"
}