CVE-2025-27933

MEDIUM

Mattermost 9.11.0-9.11.8, 10.3.0-10.3.3, 10.4.0-10.4.2 - Incorrect Authorization in Channel Conversion

Title source: llm
STIX 2.1

Description

Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8 fail to fail to enforce channel conversion restrictions, which allows members with permission to convert public channels to private ones to also convert private ones to public

References (1)

Core 1
Core References

Scores

CVSS v3 5.4
EPSS 0.0030
EPSS Percentile 53.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-863
Status published
Products (3)
mattermost/mattermost 10.4.0 - 10.4.3Go
mattermost/mattermost-server 0 - 9.11.9Go
mattermost/mattermost_server 9.11.0 - 9.11.9
Published Mar 21, 2025
Tracked Since Feb 18, 2026