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Mattermost Server CVE-2023-50333

LOW
Improper Access Control (CWE-284)
2024-01-02 responsibledisclosure@mattermost.com
3.7
CVSS 3.1 · NVD

Severity by source

NVD PRIMARY
3.7 LOW
AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 28, 2026 - 19:33 vuln.today
CVE Published
Jan 02, 2024 - 10:15 nvd
LOW 3.7

DescriptionCVE.org

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.

AnalysisAI

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. Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable.

Technical ContextAI

This vulnerability is classified under CWE-284. 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. Affected products include: Mattermost Mattermost Server.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2023-50333 vulnerability details – vuln.today

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