175 lines
6.6 KiB
JSON
175 lines
6.6 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-4265",
|
|
"assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Mattermost",
|
|
"dateReserved": "2026-03-16T12:05:32.172Z",
|
|
"datePublished": "2026-03-16T12:07:14.659Z",
|
|
"dateUpdated": "2026-03-16T13:49:55.080Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"affected": [
|
|
{
|
|
"defaultStatus": "unaffected",
|
|
"product": "Mattermost",
|
|
"vendor": "Mattermost",
|
|
"versions": [
|
|
{
|
|
"lessThanOrEqual": "11.3.0",
|
|
"status": "affected",
|
|
"version": "11.3.0",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"lessThanOrEqual": "11.2.2",
|
|
"status": "affected",
|
|
"version": "11.2.0",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"lessThanOrEqual": "10.11.10",
|
|
"status": "affected",
|
|
"version": "10.11.0",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "11.4.0",
|
|
"status": "unaffected"
|
|
},
|
|
{
|
|
"version": "11.3.1",
|
|
"status": "unaffected"
|
|
},
|
|
{
|
|
"version": "11.2.3",
|
|
"status": "unaffected"
|
|
},
|
|
{
|
|
"version": "10.11.11",
|
|
"status": "unaffected"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"type": "finder",
|
|
"value": "0x7oda7123"
|
|
}
|
|
],
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to validate team-specific upload_file permissions which allows a guest user to post files in channels where they lack upload_file permission via uploading files in a team where they have permission and reusing the file metadata in a POST request to a different team. Mattermost Advisory ID: MMSA-2025-00553"
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"attackVector": "NETWORK",
|
|
"attackComplexity": "LOW",
|
|
"privilegesRequired": "LOW",
|
|
"userInteraction": "NONE",
|
|
"scope": "UNCHANGED",
|
|
"confidentialityImpact": "NONE",
|
|
"integrityImpact": "LOW",
|
|
"availabilityImpact": "NONE",
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
|
|
"baseSeverity": "MEDIUM",
|
|
"baseScore": 4.3
|
|
},
|
|
"format": "CVSS",
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "GENERAL"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"type": "CWE",
|
|
"description": "CWE-863: Incorrect Authorization",
|
|
"cweId": "CWE-863"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://mattermost.com/security-updates",
|
|
"name": "MMSA-2025-00553",
|
|
"tags": [
|
|
"vendor-advisory"
|
|
]
|
|
}
|
|
],
|
|
"solutions": [
|
|
{
|
|
"value": "Update Mattermost to versions 11.4.0, 11.3.1, 11.2.3, 10.11.11 or higher.",
|
|
"lang": "en"
|
|
}
|
|
],
|
|
"source": {
|
|
"advisory": "MMSA-2025-00553",
|
|
"defect": [
|
|
"https://mattermost.atlassian.net/browse/MM-66478"
|
|
],
|
|
"discovery": "EXTERNAL"
|
|
},
|
|
"title": "Guest user can upload files without permission across teams",
|
|
"providerMetadata": {
|
|
"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
|
|
"shortName": "Mattermost",
|
|
"dateUpdated": "2026-03-16T12:07:14.659Z"
|
|
},
|
|
"x_generator": {
|
|
"engine": "cvelib 1.8.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2026-4265",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-03-16T13:41:40.647671Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-03-16T13:49:55.080Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |