CVE-2025-9079
Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.1, 10.9.x <= 10.9.3 fail to validate import directory path configuration which allows admin users to execute arbitrary code via malicious plugin upload to prepackaged plugins directory
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.64%
- Percentil entre todas las CVEs puntuadas: 49
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement85 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 % - Impacto secundario
T1005Data from Local Systemcollection75 %
Acceso de red con privilegios administrativos (PR:H) sobre Mattermost sin interacción (UI:N). CWE-22 (path traversal) en validación de directorio permite ejecutar código arbitrario mediante plugin malicioso. Impactos: ejecución de comandos (plugin) y acceso a datos del servidor.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-22
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-9079",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-9079",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2025-09-20T03:55:43.937191Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "responsibledisclosure@mattermost.com",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 6,
"exploitabilityScore": 1.3
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "HIGH",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.2
}
]
},
"affected": [
{
"source": "responsibledisclosure@mattermost.com",
"affectedData": [
{
"vendor": "Mattermost",
"product": "Mattermost",
"versions": [
{
"status": "affected",
"version": "10.8.0",
"versionType": "semver",
"lessThanOrEqual": "10.8.3"
},
{
"status": "affected",
"version": "10.5.0",
"versionType": "semver",
"lessThanOrEqual": "10.5.8"
},
{
"status": "affected",
"version": "9.11.0",
"versionType": "semver",
"lessThanOrEqual": "9.11.17"
},
{
"status": "affected",
"version": "10.10.0",
"versionType": "semver",
"lessThanOrEqual": "10.10.1"
},
{
"status": "affected",
"version": "10.9.0",
"versionType": "semver",
"lessThanOrEqual": "10.9.3"
},
{
"status": "unaffected",
"version": "10.11.0"
},
{
"status": "unaffected",
"version": "10.8.4"
},
{
"status": "unaffected",
"version": "10.5.9"
},
{
"status": "unaffected",
"version": "9.11.18"
},
{
"status": "unaffected",
"version": "10.10.2"
},
{
"status": "unaffected",
"version": "10.9.4"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2025-09-19T20:15:40.540",
"references": [
{
"url": "https://mattermost.com/security-updates",
"tags": [
"Vendor Advisory"
],
"source": "responsibledisclosure@mattermost.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "responsibledisclosure@mattermost.com",
"description": [
{
"lang": "en",
"value": "CWE-22"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.1, 10.9.x <= 10.9.3 fail to validate import directory path configuration which allows admin users to execute arbitrary code via malicious plugin upload to prepackaged plugins directory"
}
],
"lastModified": "2026-06-17T10:08:16.640",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4E2C0E13-B52A-4539-80B6-DC0FE8FF2E56",
"versionEndExcluding": "9.11.18",
"versionStartIncluding": "9.11.0"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B95DCAE5-07C2-46B1-B03E-ED3FB9B2C568",
"versionEndExcluding": "10.5.9",
"versionStartIncluding": "10.5.0"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BE00156D-6ACB-4F8C-BFFC-03A8127199A4",
"versionEndExcluding": "10.8.4",
"versionStartIncluding": "10.8.0"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BB49CDD5-C206-4BEC-8CB5-D757DCC43208",
"versionEndExcluding": "10.9.4",
"versionStartIncluding": "10.9.0"
},
{
"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F3861BBC-7E0F-4782-9666-4EF12C1ABDF5",
"versionEndExcluding": "10.10.2",
"versionStartIncluding": "10.10.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "responsibledisclosure@mattermost.com"
}