{"schema_version":"1.7.3","id":"GHSA-h356-3mfw-x368","published":"2025-05-15T18:31:46Z","modified":"2025-05-23T16:13:25.553522Z","aliases":["CVE-2025-2527","GO-2025-3691"],"summary":"Mattermost Fails to Verify User's Permissions When Accessing Groups","details":"Mattermost versions 10.5.x <= 10.5.2, 9.11.x <= 9.11.11 failed to properly verify a user's permissions when accessing groups, which allows an attacker to view group information via an API request.","affected":[{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"10.5.0"},{"fixed":"10.5.3"}]}],"database_specific":{"last_known_affected_version_range":"<= 10.5.2","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-h356-3mfw-x368/GHSA-h356-3mfw-x368.json"}},{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.11.0"},{"fixed":"9.11.12"}]}],"database_specific":{"last_known_affected_version_range":"<= 9.11.11","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-h356-3mfw-x368/GHSA-h356-3mfw-x368.json"}},{"package":{"name":"github.com/mattermost/mattermost/server/v8","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.0.0-20250411064244-844447fbd57c"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/05/GHSA-h356-3mfw-x368/GHSA-h356-3mfw-x368.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-2527"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-863"],"github_reviewed":true,"github_reviewed_at":"2025-05-17T14:02:10Z","nvd_published_at":"2025-05-15T16:15:33Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}