CVE-2025-27933

Description

Mattermost allows members with permission to convert public channels to private and convert private to public in github.com/mattermost/mattermost-server

Affected packages (7)

• Bitnami/mattermost>= 9.11.0, < 10.0.0, >= 10.3.0, < 10.5.1
• Go/github.com/mattermost/mattermost-server>= 9.11.0+incompatible, < 9.11.9+incompatible, >= 10.3.0+incompatible, < 10.3.4+incompatible, >= 10.4.0+incompatible, < 10.4.3+incompatible
• Go/github.com/mattermost/mattermost-serverfrom 0, < 9.11.9
• Go/github.com/mattermost/mattermost-server/v5from 0
• Go/github.com/mattermost/mattermost-server/v6from 0
• Go/github.com/mattermost/mattermost/server/v8from 0, < 8.0.0-20250218135018-e644e3c8e393
• Go/github.com/mattermost/mattermost/server/v8>= 10.4.0, < 10.4.3

CVSS scores

References (4)

• ADVISORYhttps://github.com/advisories/GHSA-h5v9-xw2g-7hrq
• ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-27933
• PATCHhttps://github.com/mattermost/mattermost
• WEBhttps://mattermost.com/security-updates