{"id":"GHSA-p6gj-jc38-x2m7","revision":"dd4c22fe832e414592e82f75381129c0","records":[{"revision":"dd4c22fe832e414592e82f75381129c0","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-p6gj-jc38-x2m7","aliases":["CVE-2025-12756","GO-2025-4172"],"title":"Mattermost fails to validate user permissions when deleting comments in Boards","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 validate user permissions when deleting comments in Boards, which allows an authenticated user with the editor role to delete comments created by other users.","state":0,"publishedAt":"2025-12-01T21:30:26+00:00","modifiedAt":"2025-12-03T19:43:25.608785+00:00","affected":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"last_affected","version":"8.0.0-20251013062617-7977e7e6dae3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"10.11.0"},{"kind":"last_affected","version":"10.11.4"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"10.12.0"},{"kind":"last_affected","version":"10.12.1"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"10.5.0"},{"kind":"last_affected","version":"10.5.12"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/mattermost/mattermost","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"11.0.0"},{"kind":"last_affected","version":"11.0.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2025-12756","https://github.com/mattermost/mattermost","https://mattermost.com/security-updates"],"sourceUrl":"https://github.com/advisories/GHSA-p6gj-jc38-x2m7","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-p6gj-jc38-x2m7","identifiers":["GHSA-p6gj-jc38-x2m7","CVE-2025-12756","GO-2025-4172"]},"retained":false,"historicalAffected":[]}],"coverage":[]}