CVE-2023-47858

MEDIUM

Mattermost < 8.1.7, < 7.8.10 - Improper Access Control via Archived Public Channel Endpoint

Title source: llm

Description

Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/<team-id>/channels/deleted endpoint.

References (1)

Core 1

Core References

Vendor Advisory

https://mattermost.com/security-updates

Scores

CVSS v3 4.3

EPSS 0.0019

EPSS Percentile 40.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-284

Status published

Products (3)

mattermost/mattermost 0 - 8.1.1Go

mattermost/mattermost-server 0 - 7.8.10Go

mattermost/mattermost_server < 8.1.7

Published Jan 02, 2024

Tracked Since Feb 18, 2026