CVE-2023-3582

MEDIUM

Mattermost 7.8.0-7.8.6 - Authenticated Incorrect Authorization via Board Channel Linking

Title source: llm
STIX 2.1

Description

Mattermost fails to verify channel membership when linking a board to a channel allowing a low-privileged authenticated user to link a Board to a private channel they don't have access to, 

References (1)

Core 1
Core References

Scores

CVSS v3 4.3
EPSS 0.0016
EPSS Percentile 36.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-863
Status published
Products (1)
mattermost/mattermost_server 7.8.0 - 7.8.7
Published Jul 17, 2023
Tracked Since Feb 18, 2026