{"id":"GHSA-q7rx-w656-fwmv","summary":"Mattermost notified all users in the channel when using WebSockets to respond individually","details":"Mattermost fails to scope the WebSocket response around notified users to a each user separately resulting in the WebSocket broadcasting the information about who was notified about a post to everyone else in the channel.\n\n","aliases":["BIT-mattermost-2023-48732","CVE-2023-48732","GO-2024-2448"],"modified":"2026-09-10T03:50:05.049486889Z","published":"2024-01-02T12:30:18Z","database_specific":{"nvd_published_at":"2024-01-02T10:15:08Z","cwe_ids":["CWE-200"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2024-01-03T21:44:56Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-48732"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/851515be222160bee0a495c0d411056b19ed4111"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-q7rx-w656-fwmv"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"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":"0"},{"fixed":"8.1.7"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 8.1.6","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/01/GHSA-q7rx-w656-fwmv/GHSA-q7rx-w656-fwmv.json"}},{"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":"8.1.7"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 8.1.6","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/01/GHSA-q7rx-w656-fwmv/GHSA-q7rx-w656-fwmv.json"}}],"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"}]}