CVE-2025-27936

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-27936", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "state": "PUBLISHED", "assignerShortName": "Mattermost", "dateReserved": "2025-04-08T11:14:14.689Z", "datePublished": "2025-04-16T09:14:55.095Z", "dateUpdated": "2025-04-16T14:32:45.176Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Mattermost", "vendor": "Mattermost", "versions": [{"lessThanOrEqual": "10.5.1", "status": "affected", "version": "10.5.0", "versionType": "semver"}, {"status": "unaffected", "version": "10.6.0"}, {"status": "unaffected", "version": "10.5.2"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Juho Fors\u00e9n"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Mattermost Plugin MSTeams versions &lt;<span style=\"background-color: rgb(255, 255, 255);\">2.1.0 and Mattermost Server&nbsp;</span>versions 10.5.x &lt;=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows&nbsp;an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison. </p>"}], "value": "Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server\u00a0versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows\u00a0an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-208", "description": "CWE-208: Observable Timing Discrepancy", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2025-04-16T09:14:55.095Z"}, "references": [{"url": "https://mattermost.com/security-updates"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Update Mattermost Plugin MSTeams to version 2.1.1 or Mattermost Server to versions 10.6.0, 10.5.2 or higher.</p>"}], "value": "Update Mattermost Plugin MSTeams to version 2.1.1 or Mattermost Server to versions 10.6.0, 10.5.2 or higher."}], "source": {"advisory": "MMSA-2025-00450", "defect": ["https://mattermost.atlassian.net/browse/MM-63147"], "discovery": "INTERNAL"}, "title": "Webhook Secret Exposure via Timing attack in MSteams plugin", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-16T14:19:16.252929Z", "id": "CVE-2025-27936", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-16T14:32:45.176Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-27936", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-16T14:19:16.252929Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-16T14:22:49.604Z"}}], "cna": {"title": "Webhook Secret Exposure via Timing attack in MSteams plugin", "source": {"defect": ["https://mattermost.atlassian.net/browse/MM-63147"], "advisory": "MMSA-2025-00450", "discovery": "INTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Juho Fors\u00e9n"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Mattermost", "product": "Mattermost", "versions": [{"status": "affected", "version": "10.5.0", "versionType": "semver", "lessThanOrEqual": "10.5.1"}, {"status": "unaffected", "version": "10.6.0"}, {"status": "unaffected", "version": "10.5.2"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update Mattermost Plugin MSTeams to version 2.1.1 or Mattermost Server to versions 10.6.0, 10.5.2 or higher.", "supportingMedia": [{"type": "text/html", "value": "<p>Update Mattermost Plugin MSTeams to version 2.1.1 or Mattermost Server to versions 10.6.0, 10.5.2 or higher.</p>", "base64": false}]}], "references": [{"url": "https://mattermost.com/security-updates"}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server\u00a0versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows\u00a0an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison.", "supportingMedia": [{"type": "text/html", "value": "<p>Mattermost Plugin MSTeams versions &lt;<span style=\"background-color: rgb(255, 255, 255);\">2.1.0 and Mattermost Server&nbsp;</span>versions 10.5.x &lt;=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows&nbsp;an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison. </p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-208", "description": "CWE-208: Observable Timing Discrepancy"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2025-04-16T09:14:55.095Z"}}}, "cveMetadata": {"cveId": "CVE-2025-27936", "state": "PUBLISHED", "dateUpdated": "2025-04-16T14:32:45.176Z", "dateReserved": "2025-04-08T11:14:14.689Z", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "datePublished": "2025-04-16T09:14:55.095Z", "assignerShortName": "Mattermost"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Mattermost", "vendor": "Mattermost", "versions": [{"lessThanOrEqual": "10.5.1", "status": "affected", "version": "10.5.0", "versionType": "semver"}, {"status": "unaffected", "version": "10.6.0"}, {"status": "unaffected", "version": "10.5.2"}]}], "source": "responsibledisclosure@mattermost.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "2DE93CBC-B6CE-4E53-8F2E-2E7994AD9E9E", "versionEndExcluding": "10.5.2", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:ms_teams:*:*:*:*:*:*:*:*", "matchCriteriaId": "871A9BE2-E180-45D7-B126-345AE4280A0B", "versionEndExcluding": "2.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server\u00a0versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows\u00a0an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison."}, {"lang": "es", "value": "Las versiones &lt;2.1.0 de Mattermost Plugin MSTeams y las versiones 10.5.x &lt;=10.5.1 de Mattermost Server con el complemento MS Teams habilitado no pueden realizar una comparaci\u00f3n de tiempo constante en un secreto de webhook del complemento MSTeams, lo que permite que un atacante recupere el secreto de webhook del complemento MSTeams a trav\u00e9s de un ataque de tiempo durante la comparaci\u00f3n del secreto de webhook."}], "id": "CVE-2025-27936", "lastModified": "2026-06-17T09:04:25.247", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 3.6, "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-27936", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-16T14:19:16.252929Z", "version": "2.0.3"}}]}, "published": "2025-04-16T10:15:14.797", "references": [{"source": "responsibledisclosure@mattermost.com", "tags": ["Vendor Advisory"], "url": "https://mattermost.com/security-updates"}], "sourceIdentifier": "responsibledisclosure@mattermost.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-208"}], "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}]}

{}

{}