CVE-2023-50333 - Vulnerability Details - OpenCVE

Description

Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names.

Published: 2024-01-02

Score: 3.7 Low

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

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	≤ 9.2.2
`0`	affected	≤ 8.1.6
`8.1.7`	unaffected	—

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

Vendor Solution

Update Mattermost Server to versions 8.1.7, 9.3.0 or higher.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2024-0319	Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names.
Github GHSA	GHSA-9w97-9rqx-8v4j	Mattermost allows demoted guests to change group names

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00071.

Exploitation none

Automatable no

Technical Impact partial

References

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

History

Tue, 17 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'}`

Subscriptions

Mattermost Mattermost Server

MITRE

Status: PUBLISHED

Assigner: Mattermost

Published: 2024-01-02T09:53:01.990Z

Updated: 2025-06-17T13:35:30.706Z

Reserved: 2023-12-21T08:00:43.432Z

Link: CVE-2023-50333

Vulnrichment

Updated: 2024-08-02T22:16:46.618Z

NVD

Status : Modified

Published: 2024-01-02T10:15:08.723

Modified: 2024-11-21T08:36:51.637

Link: CVE-2023-50333

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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