{"id":"CVE-2025-12559","revision":"108bde0ea5784ee5a9fc3a83b3e8b922","records":[{"revision":"108bde0ea5784ee5a9fc3a83b3e8b922","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-12559","aliases":[],"title":"Information Disclosure in Common Teams API","description":"Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to sanitize team email addresses to be visible only to Team Admins, which allows any authenticated user to view team email addresses via the GET /api/v4/channels/{channel_id}/common_teams endpoint","state":0,"publishedAt":"2025-11-27T16:36:30.545+00:00","modifiedAt":"2025-11-28T15:20:44.142+00:00","affected":[{"ecosystem":"Vendor product","name":"Mattermost","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"Mattermost\",\n                    \"vendor\": \"Mattermost\",\n                    \"versions\": [\n                        {\n                            \"lessThanOrEqual\": \"11.0.2\",\n                            \"status\": \"affected\",\n                            \"version\": \"11.0.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"lessThanOrEqual\": \"10.12.1\",\n                            \"status\": \"affected\",\n                            \"version\": \"10.12.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"lessThanOrEqual\": \"10.11.4\",\n                            \"status\": \"affected\",\n                            \"version\": \"10.11.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"lessThanOrEqual\": \"10.5.12\",\n                            \"status\": \"affected\",\n                            \"version\": \"10.5.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"11.1.0\",\n                            \"status\": \"unaffected\"\n                        },\n                        {\n                            \"version\": \"11.0.3\",\n                            \"status\": \"unaffected\"\n                        },\n                        {\n                            \"version\": \"10.12.2\",\n                            \"status\": \"unaffected\"\n                        },\n                        {\n                            \"version\": \"10.11.5\",\n                            \"status\": \"unaffected\"\n                        },\n                        {\n                            \"version\": \"10.5.13\",\n                            \"status\": \"unaffected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://mattermost.com/security-updates"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-12559","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-12559","identifiers":["CVE-2025-12559"]},"retained":false,"historicalAffected":[]}],"coverage":[]}