CVE-2023-5194

A system/user manager can demote / deactivate another manager

View on CVE.org

Published Sep 29, 2023 CVSS 3.1 · 2.7 Low EPSS < 1% KEV · Not listed

Description

Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Mattermost

Mattermost

unaffected

Version	Status	Constraints
`0`	affected	≤ 8.1.0
`0`	affected	≤ 7.8.9
`8.1.1`	unaffected	—
`7.8.10`	unaffected	—

Configuration 1 [-]

OR	cpe:2.3:a:mattermost:mattermost::::::::
	cpe:2.3:a:mattermost:mattermost::::::::

No data.

No data available yet.

Remediation

Vendor Solution

Update Mattermost Server to versions 8.1.1, 7.8.10 or higher.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-2518	Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager
Github GHSA	GHSA-h69v-mvh9-hfrq	Mattermost Incorrect Authorization vulnerability

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.399% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://mattermost.com/security-updates

History

No history.

Subscriptions

Mattermost Mattermost

Weaknesses

CWE-863

Sources

CVE record Updated: Sep 5, 2024, 7:59 PM

Status: PUBLISHED
Assigner: Mattermost
Published: Sep 29, 2023, 9:28 AM
Updated: Sep 5, 2024, 7:59 PM
Reserved: Sep 26, 2023, 9:03 AM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 7:52 AM

Updated: Aug 2, 2024, 7:52 AM

NVD Updated: Jun 17, 2026, 6:47 AM

Status: Modified
Published: Sep 29, 2023, 10:15 AM
Modified: Jun 17, 2026, 6:47 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-5194", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "state": "PUBLISHED", "assignerShortName": "Mattermost", "dateReserved": "2023-09-26T09:03:42.301Z", "datePublished": "2023-09-29T09:28:50.676Z", "dateUpdated": "2024-09-05T19:59:54.546Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Mattermost", "vendor": "Mattermost", "versions": [{"lessThanOrEqual": "8.1.0", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.8.9", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "8.1.1"}, {"status": "unaffected", "version": "7.8.10"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Pyae Phyo (pyae_phyo)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager</p>"}], "value": "Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a\u00a0system/user manager to demote / deactivate another manager\n\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 2.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2023-09-29T09:28:50.676Z"}, "references": [{"url": "https://mattermost.com/security-updates"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Update Mattermost Server to versions <span style=\"background-color: rgb(255, 255, 255);\">8.1.1, 7.8.10</span> or higher.</p>"}], "value": "Update Mattermost Server to versions 8.1.1, 7.8.10 or higher.\n\n"}], "source": {"advisory": "MMSA-2023-00223", "defect": ["https://mattermost.atlassian.net/browse/MM-53368"], "discovery": "EXTERNAL"}, "title": "A system/user manager can demote / deactivate another manager", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:52:08.255Z"}, "title": "CVE Program Container", "references": [{"url": "https://mattermost.com/security-updates", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-05T19:59:26.948054Z", "id": "CVE-2023-5194", "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": "2024-09-05T19:59:54.546Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://mattermost.com/security-updates", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:52:08.255Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-5194", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-05T19:59:26.948054Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-05T19:59:47.439Z"}}], "cna": {"title": "A system/user manager can demote / deactivate another manager", "source": {"defect": ["https://mattermost.atlassian.net/browse/MM-53368"], "advisory": "MMSA-2023-00223", "discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Pyae Phyo (pyae_phyo)"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Mattermost", "product": "Mattermost", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "8.1.0"}, {"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "7.8.9"}, {"status": "unaffected", "version": "8.1.1"}, {"status": "unaffected", "version": "7.8.10"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update Mattermost Server to versions 8.1.1, 7.8.10 or higher.\n\n", "supportingMedia": [{"type": "text/html", "value": "<p>Update Mattermost Server to versions <span style=\"background-color: rgb(255, 255, 255);\">8.1.1, 7.8.10</span> or higher.</p>", "base64": false}]}], "references": [{"url": "https://mattermost.com/security-updates"}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}, "descriptions": [{"lang": "en", "value": "Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a\u00a0system/user manager to demote / deactivate another manager\n\n", "supportingMedia": [{"type": "text/html", "value": "<p>Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a system/user manager to demote / deactivate another manager</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2023-09-29T09:28:50.676Z"}}}, "cveMetadata": {"cveId": "CVE-2023-5194", "state": "PUBLISHED", "dateUpdated": "2024-09-05T19:59:54.546Z", "dateReserved": "2023-09-26T09:03:42.301Z", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "datePublished": "2023-09-29T09:28:50.676Z", "assignerShortName": "Mattermost"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Mattermost", "vendor": "Mattermost", "versions": [{"lessThanOrEqual": "8.1.0", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.8.9", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "8.1.1"}, {"status": "unaffected", "version": "7.8.10"}]}], "source": "responsibledisclosure@mattermost.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "matchCriteriaId": "69C58AE2-7A73-4736-B442-4C67D98AD157", "versionEndExcluding": "7.8.10", "versionStartIncluding": "7.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "matchCriteriaId": "B96ADDD7-CCB9-4558-A54A-813DBAFAD356", "versionEndExcluding": "8.1.1", "versionStartIncluding": "8.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Mattermost fails to properly validate permissions when demoting and deactivating a user allowing for a\u00a0system/user manager to demote / deactivate another manager\n\n"}, {"lang": "es", "value": "Mattermost no valida correctamente los permisos al degradar y desactivar a un usuario, lo que permite que un administrador de sistema/usuario degrade/desactive a otro administrador"}], "id": "CVE-2023-5194", "lastModified": "2026-06-17T06:47:50.520", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 2.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 1.4, "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-5194", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-05T19:59:26.948054Z", "version": "2.0.3"}}]}, "published": "2023-09-29T10:15:10.757", "references": [{"source": "responsibledisclosure@mattermost.com", "tags": ["Vendor Advisory"], "url": "https://mattermost.com/security-updates"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://mattermost.com/security-updates"}], "sourceIdentifier": "responsibledisclosure@mattermost.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-863"}], "source": "nvd@nist.gov", "type": "Primary"}]}