CVE-2023-2281

Archiving a team broadcasts unsanitized data over WebSockets

View on CVE.org

Published Apr 25, 2023 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed

Description

When archiving a team, Mattermost fails to sanitize the related Websocket event sent to currently connected clients. This allows the clients to see the name, display name, description, and other data about the archived team.

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	< 7.9
`7.9`	unaffected	—

Configuration 1 [-]

cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

Update Mattermost to version v7.9 or higher.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-33787	When archiving a team, Mattermost fails to sanitize the related Websocket event sent to currently connected clients. This allows the clients to see the name, display name, description, and other data about the archived team.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.475% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://mattermost.com/security-updates/
https://nvd.nist.gov/vuln/detail/CVE-2023-2281
https://www.cve.org/CVERecord?id=CVE-2023-2281

History

Dec 6, 2024 11:15 PM Scoring metrics updated View changes

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

Subscriptions

Mattermost Mattermost Server

Weaknesses

Sources

CVE record Updated: Dec 6, 2024, 11:04 PM

Status: PUBLISHED
Assigner: Mattermost
Published: Apr 25, 2023, 1:04 PM
Updated: Dec 6, 2024, 11:04 PM
Reserved: Apr 25, 2023, 1:04 PM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 6:19 AM

Updated: Aug 2, 2024, 6:19 AM

NVD Updated: Jun 17, 2026, 5:52 AM

Status: Modified
Published: Apr 25, 2023, 2:15 PM
Modified: Jun 17, 2026, 5:52 AM

View source JSON

Red Hat Updated: Apr 25, 2023, 12:00 AM

Severity: Low
Public date: Apr 25, 2023, 12:00 AM

View source Bugzilla JSON

OpenCVE enrichment No data

No data.

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