Medium
Details of archived public channels are leaked to members of another team
Type: advisorySources: OSV
Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams//channels/deleted endpoint.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2023-47858
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 16:42 UTC · Revision 1
Source evidence
Details of archived public channels are leaked to members of another team
core-osv · Original sourcePublished 2 Jan 2024, 09:54 UTC
Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams//channels/deleted endpoint.
osv:CVE-2023-47858
Complete source record
{
"id": "f03e1afa1060d94b8518a532146a827ffeca0231478106eb73c8109a065e8698",
"url": "https://osv.dev/vulnerability/CVE-2023-47858",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Details of archived public channels are leaked to members of another team",
"summary": "Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams//channels/deleted endpoint.",
"evidence": "osv:CVE-2023-47858",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2023-47858",
"aliases": [
"BIT-mattermost-2023-47858",
"CVE-2023-47858",
"GHSA-w88v-pjr8-cmv2",
"GO-2024-2450"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mattermost/mattermost",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "77aeda5cedc8ef60d06da024202b8c7999efd671"
},
{
"introduced": "987e843629fe3f11861fda23ceb66884f5973ef1"
},
{
"fixed": "9ccda46b85770d6c9af366893cbd3234f77489b8"
},
{
"introduced": "5934ff113becf755beb978cc7bd1ba6564cbbdd6"
},
{
"fixed": "6494fc712419d34ea44c8887981a7554e25c1eb6"
},
{
"introduced": "b47be1c0f5787562ddf430dd5c5b8b3c35748b06"
},
{
"fixed": "9e52296cfb7c8eaf0b24e39a2ecea4bf58facd60"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "8.1.7"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.0.0"
},
{
"fixed": "9.0.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.1.0"
},
{
"fixed": "9.1.4"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.2.0"
},
{
"fixed": "9.2.3"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v8.1.7-rc2",
"v8.1.7-rc1",
"v9.1.3-rc1",
"v9.1.3",
"v9.0.4-rc1",
"v9.0.4",
"v8.1.6-rc1",
"v8.1.6",
"v9.2.2",
"v9.1.2",
"v9.0.3-rc1",
"v9.0.3",
"v8.1.5-rc2",
"v8.1.5",
"v8.1.5-rc1",
"v9.2.1",
"v9.1.2-rc1",
"v9.2.0-rc2",
"v9.2.0",
"@mattermost/types@9.2.0",
"@mattermost/client@9.2.0",
"v9.1.1-rc1",
"v9.1.1",
"v9.0.2-rc1",
"v9.0.2",
"v8.1.4-rc2",
"v8.1.4",
"v8.1.4-rc1",
"v9.1.0-rc2",
"v9.1.0",
"@mattermost/types@9.1.0",
"@mattermost/client@9.1.0",
"v9.0.1-rc1",
"v9.0.1",
"v8.1.3-rc2",
"v8.1.3",
"v8.1.3-rc1",
"v9.0.0-rc2",
"v9.0.0",
"@mattermost/types@9.0.0",
"@mattermost/client@9.0.0",
"v8.1.2-rc2",
"v8.1.2",
"v8.1.2-rc1",
"v8.1.1-rc2",
"v8.1.1",
"@mattermost/types@8.1.1",
"@mattermost/client@8.1.1",
"v8.1.1-rc1",
"v8.1.0-rc2",
"v8.1.0",
"cloud-2023-07-26-1",
"server/public/v0.0.5",
"cloud-2022-11-24-1",
"cloud-2022-11-11-1",
"cloud-2022-10-06-1",
"cloud-2022-09-08-1",
"cloud-2022-08-10-1",
"cloud-2022-07-20-1",
"v5.2.0-rc2",
"v5.2.0-rc1",
"v5.1.0-rc1",
"v5.0.0-rc1",
"v4.10.0-rc1",
"v4.9.0-rc1",
"v4.8.0-rc1",
"v4.7.0-rc1",
"v4.6.0-rc2",
"v4.6.0-rc1",
"v4.5.0-rc1",
"v4.4.0-rc1",
"v4.3.0-rc1",
"v4.2.0-rc1",
"v0.5.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-47858.json"
}
}
],
"modified": "2026-10-28T02:30:20.898256579Z",
"provider": "osv",
"references": [
"https://mattermost.com/security-updates",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/47xxx/CVE-2023-47858.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-47858"
],
"provider_metadata": {
"cwe_ids": [
"CWE-284"
],
"cna_assigner": "Mattermost",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"last_affected": "9.2.2"
},
{
"last_affected": "9.1.3"
},
{
"last_affected": "9.0.4"
},
{
"last_affected": "8.1.6"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/47xxx/CVE-2023-47858.json"
}
},
"related_cves": [
{
"value": "CVE-2023-47858",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 487295,
"published_at": "2024-01-02T09:54:25.057+00:00"
}