{"id":"GHSA-w88v-pjr8-cmv2","summary":"Mattermost viewing archived public channels permissions vulnerability","details":"Mattermost fails to properly verify the permissions needed for viewing archived public channels,  allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/\u003cteam-id\u003e/channels/deleted endpoint.\n\n","aliases":["BIT-mattermost-2023-47858","CVE-2023-47858","GO-2024-2450"],"modified":"2026-07-17T21:08:26.336575862Z","published":"2024-01-02T12:30:18Z","database_specific":{"nvd_published_at":"2024-01-02T10:15:08Z","cwe_ids":["CWE-284"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2024-01-03T21:43:32Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-47858"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"affected":[{"package":{"name":"github.com/mattermost/mattermost-server/v6","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server/v6"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"7.8.10"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 7.8.9","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/01/GHSA-w88v-pjr8-cmv2/GHSA-w88v-pjr8-cmv2.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":"8.1.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/01/GHSA-w88v-pjr8-cmv2/GHSA-w88v-pjr8-cmv2.json","last_known_affected_version_range":"\u003c= 8.1.0"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}