Critical
Arbitrary file read in Mattermost Boards via import & export board archive
Type: advisorySources: OSV
Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate board blocks when importing boards which allows an attacker could read any arbitrary file on the system via importing and exporting a specially crafted import archive in Boards.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-25279
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 03:41 UTC · Revision 1
Source evidence
Arbitrary file read in Mattermost Boards via import & export board archive
core-osv · Original sourcePublished 24 Feb 2025, 07:25 UTC
Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate board blocks when importing boards which allows an attacker could read any arbitrary file on the system via importing and exporting a specially crafted import archive in Boards.
osv:CVE-2025-25279
Complete source record
{
"id": "30335999555826caa098e557747e5d030610fe5c21c3fa08a0814f8e1981325c",
"url": "https://osv.dev/vulnerability/CVE-2025-25279",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Arbitrary file read in Mattermost Boards via import & export board archive",
"summary": "Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate board blocks when importing boards which allows an attacker could read any arbitrary file on the system via importing and exporting a specially crafted import archive in Boards.",
"evidence": "osv:CVE-2025-25279",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2025-25279",
"aliases": [
"CVE-2025-25279",
"GHSA-5fwx-p6xh-vjrh",
"GO-2025-3480"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mattermost/mattermost",
"type": "GIT",
"events": [
{
"introduced": "0bc2ddd42375a75ab14e63f038165150d4f07659"
},
{
"fixed": "968fc9abd56d51d32880bca2f7cbcdff8c1af68c"
},
{
"introduced": "9a578312304f06bb423d668fa8f1b975dc1fe79a"
},
{
"fixed": "e246296facafd47a71e4b88c7f47647214f2712c"
},
{
"introduced": "14facfa730253bbf4191d3346c2fd6f282c5b446"
},
{
"fixed": "286f59a75888cafe4adf7759df6fb9df71321c2d"
},
{
"introduced": "7c8c0b7464fa9cd2fbfb97c65d1475b4be2e765c"
},
{
"fixed": "dabbe427c192a73527734aec5449a71acbe03535"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.11.0"
},
{
"fixed": "9.11.8"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "10.2.0"
},
{
"fixed": "10.2.3"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "10.3.0"
},
{
"fixed": "10.3.3"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "10.4.0"
},
{
"fixed": "10.4.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v10.3.2-rc2",
"v10.3.2",
"v10.2.2-rc1",
"v10.2.2",
"v9.11.7-rc3",
"v9.11.7",
"v10.3.2-rc1",
"v10.4.1",
"v9.11.7-rc2",
"v10.4.0-rc3",
"v10.4.0",
"@mattermost/types@10.4.0",
"@mattermost/client@10.4.0",
"v9.11.7-rc1",
"v10.3.1-rc1",
"v10.3.1",
"v10.2.1",
"v9.11.6",
"v10.3.0",
"@mattermost/types@10.3.0",
"@mattermost/client@10.3.0",
"v9.11.6-rc2",
"v10.2.1-rc1",
"v9.11.6-rc1",
"v9.11.5",
"v9.11.5-rc1",
"v10.2.0-rc3",
"v10.2.0",
"v9.11.4",
"v9.11.4-rc1",
"v9.11.3",
"v9.11.3-rc2",
"v9.11.3-rc1",
"v9.11.2",
"v9.11.2-rc2",
"v9.11.2-rc1",
"v9.11.1-rc1",
"v9.11.1",
"v9.11.0-rc3",
"v9.11.0",
"@mattermost/types@9.11.0",
"@mattermost/client@9.11.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-25279.json"
}
}
],
"modified": "2026-10-28T02:30:32.802034976Z",
"provider": "osv",
"references": [
"https://mattermost.com/security-updates",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25279.json",
"https://nvd.nist.gov/vuln/detail/CVE-2025-25279"
],
"provider_metadata": {
"cwe_ids": [
"CWE-22"
],
"cna_assigner": "Mattermost",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"introduced": "10.4.0"
},
{
"last_affected": "10.4.1"
},
{
"introduced": "9.11.0"
},
{
"last_affected": "9.11.7"
},
{
"introduced": "10.3.0"
},
{
"last_affected": "10.3.2"
},
{
"introduced": "10.2.0"
},
{
"last_affected": "10.2.2"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25279.json"
}
},
"related_cves": [
{
"value": "CVE-2025-25279",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 500079,
"published_at": "2025-02-24T07:25:26.792+00:00"
}