GitHub Advisoryadvisory · Go

GHSA-h5v9-xw2g-7hrq Mattermost allows members with permission to convert public channels to private and convert private to public

MEDIUM Published 2025-03-21 Modified 2025-03-21 Official page ↗
Aliases
CVE-2025-27933
Ecosystem
Go
Packages
github.com/mattermost/mattermost/server/v8, github.com/mattermost/mattermost-server
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-863
Reviewed
2025-03-21

Affected packages

• Go github.com/mattermost/mattermost/server/v8: >= 10.4.0, < 10.4.3 → fixed in 10.4.3 • Go github.com/mattermost/mattermost/server/v8: >= 10.3.0, < 10.3.4 → fixed in 10.3.4 • Go github.com/mattermost/mattermost/server/v8: >= 9.11.0, < 9.11.9 → fixed in 9.11.9 • Go github.com/mattermost/mattermost-server: < 9.11.9 → fixed in 9.11.9 • Go github.com/mattermost/mattermost/server/v8: < 8.0.0-20250218135018-e644e3c8e393 → fixed in 8.0.0-20250218135018-e644e3c8e393

Description

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

Related

Alias · CVE (1)

  • CVE-2025-27933 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… vulnerability

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References