CVE-2025-9072
Full vulnerability record from the local CVENow database.
Description
Mattermost versions 10.10.x <= 10.10.1, 10.5.x <= 10.5.9, 10.9.x <= 10.9.4 fail to validate the redirect_to parameter, allowing an attacker to craft a malicious link that, once a user authenticates with their SAML provider, could post the user’s cookies to an attacker-controlled URL.
Severity
MEDIUM
CVSS score
5.4
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2025-09-15 11:15:34.183000
Last modified
2026-10-19 17:10:00.173000
View original CVE JSON
{
"id": "CVE-2025-9072",
"sourceIdentifier": "[email protected]",
"published": "2025-09-15T11:15:34.183",
"lastModified": "2026-10-19T17:10:00.173",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Mattermost versions 10.10.x <= 10.10.1, 10.5.x <= 10.5.9, 10.9.x <= 10.9.4 fail to validate the redirect_to parameter, allowing an attacker to craft a malicious link that, once a user authenticates with their SAML provider, could post the user’s cookies to an attacker-controlled URL."
},
{
"lang": "es",
"value": "Las versiones de Mattermost 10.10.x menor o igual que 10.10.1, 10.5.x menor o igual que 10.5.9, 10.9.x menor o igual que 10.9.4 no validan el parámetro redirect_to, permitiendo a un atacante crear un enlace malicioso que, una vez que un usuario se autentica con su proveedor SAML, podría publicar las cookies del usuario a una URL controlada por el atacante."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Mattermost",
"product": "Mattermost",
"defaultStatus": "unaffected",
"versions": [
{
"version": "10.10.0",
"lessThanOrEqual": "10.10.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "10.5.0",
"lessThanOrEqual": "10.5.9",
"versionType": "semver",
"status": "affected"
},
{
"version": "10.9.0",
"lessThanOrEqual": "10.9.4",
"versionType": "semver",
"status": "affected"
},
{
"version": "10.11.0",
"status": "unaffected"
},
{
"version": "10.10.2",
"status": "unaffected"
},
{
"version": "10.5.10",
"status": "unaffected"
},
{
"version": "10.9.5",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L",
"baseScore": 7.6,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.1,
"impactScore": 5.5
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "REQUIRED",
"scope": "CHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.3,
"impactScore": 2.7
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2025-09-15T12:03:54.190037Z",
"id": "CVE-2025-9072",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-601"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"versionStartIncluding": "10.5.0",
"versionEndExcluding": "10.5.10",
"matchCriteriaId": "49F6AD20-31EC-46B8-BC90-A70417C4B39A"
},
{
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"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"versionStartIncluding": "10.9.0",
"versionEndExcluding": "10.9.5",
"matchCriteriaId": "516BC5C5-D5B7-4FA8-BAC2-3999A7F76899"
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{
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}
],
"references": [
{
"url": "https://mattermost.com/security-updates",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}