CVE-2023-35075 - Vulnerability Details - OpenCVE

Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00468.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Mattermost	Mattermost

Configuration 1 [-]

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

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2023-2986	Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.
Github GHSA	GHSA-jcgv-3pfq-j4hr	Mattermost Injection vulnerability

Fixes

Solution

Update Mattermost Server to versions 7.8.13, 8.1.4 or higher.

Workaround

No workaround given by the vendor.

References

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

History

Tue, 03 Jun 2025 14:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Mattermost

Published: 2023-11-27T09:09:19.659Z

Updated: 2025-06-03T14:01:04.187Z

Reserved: 2023-11-20T12:06:31.656Z

Link: CVE-2023-35075

Vulnrichment

Updated: 2024-08-02T16:23:58.680Z

NVD

Status : Modified

Published: 2023-11-27T10:15:07.257

Modified: 2024-11-21T08:07:55.753

Link: CVE-2023-35075

Redhat

No data.

OpenCVE Enrichment

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-35075", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "state": "PUBLISHED", "assignerShortName": "Mattermost", "dateReserved": "2023-11-20T12:06:31.656Z", "datePublished": "2023-11-27T09:09:19.659Z", "dateUpdated": "2025-06-03T14:01:04.187Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Mattermost", "vendor": "Mattermost", "versions": [{"lessThanOrEqual": "8.1.3", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.8.12", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "7.8.13"}, {"status": "unaffected", "version": "8.1.4"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Harrison Healey"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Mattermost fails to use  innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though. </p>"}], "value": "Mattermost fails to use\u00a0 innerText /\u00a0textContent\u00a0when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.\u00a0\n\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-74", "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2023-11-27T09:09:19.659Z"}, "references": [{"url": "https://mattermost.com/security-updates"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Update Mattermost Server to versions 7.8.13, 8.1.4 or higher.</p>"}], "value": "Update Mattermost Server to versions 7.8.13, 8.1.4 or higher.\n\n"}], "source": {"advisory": "MMSA-2023-00228", "defect": ["https://mattermost.atlassian.net/browse/MM-53371"], "discovery": "EXTERNAL"}, "title": "HTML injection via channel autocomplete", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T16:23:58.680Z"}, "title": "CVE Program Container", "references": [{"url": "https://mattermost.com/security-updates", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2023-12-04T17:41:26.792655Z", "id": "CVE-2023-35075", "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": "2025-06-03T14:01:04.187Z"}}]}}

{"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": "2024-08-02T16:23:58.680Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-35075", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2023-12-04T17:41:26.792655Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-06-03T14:00:53.740Z"}}], "cna": {"title": "HTML injection via channel autocomplete", "source": {"defect": ["https://mattermost.atlassian.net/browse/MM-53371"], "advisory": "MMSA-2023-00228", "discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Harrison Healey"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.1, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Mattermost", "product": "Mattermost", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "8.1.3"}, {"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "7.8.12"}, {"status": "unaffected", "version": "7.8.13"}, {"status": "unaffected", "version": "8.1.4"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "Update Mattermost Server to versions 7.8.13, 8.1.4 or higher.\n\n", "supportingMedia": [{"type": "text/html", "value": "<p>Update Mattermost Server to versions 7.8.13, 8.1.4 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 use\u00a0 innerText /\u00a0textContent\u00a0when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.\u00a0\n\n", "supportingMedia": [{"type": "text/html", "value": "<p>Mattermost fails to use  innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though. </p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-74", "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2023-11-27T09:09:19.659Z"}}}, "cveMetadata": {"cveId": "CVE-2023-35075", "state": "PUBLISHED", "dateUpdated": "2025-06-03T14:01:04.187Z", "dateReserved": "2023-11-20T12:06:31.656Z", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "datePublished": "2023-11-27T09:09:19.659Z", "assignerShortName": "Mattermost"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "matchCriteriaId": "BAEFCB9C-4CFC-4C2D-B53D-4A1E9B54E744", "versionEndIncluding": "7.8.12", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "matchCriteriaId": "7CFE72E8-D2A6-4994-88F6-2B04DB413631", "versionEndIncluding": "8.1.3", "versionStartIncluding": "8.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Mattermost fails to use\u00a0 innerText /\u00a0textContent\u00a0when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.\u00a0\n\n"}, {"lang": "es", "value": "Mattermost no utiliza el texto interno/textContent al configurar el nombre del canal en la aplicaci\u00f3n web durante el autocompletado, lo que permite a un atacante inyectar HTML en la p\u00e1gina de una v\u00edctima creando un nombre de canal que sea HTML v\u00e1lido. Sin embargo, no es posible XSS."}], "id": "CVE-2023-35075", "lastModified": "2024-11-21T08:07:55.753", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 1.4, "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-11-27T10:15:07.257", "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-74"}], "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-74"}], "source": "nvd@nist.gov", "type": "Primary"}]}