{"id":"CVE-2023-48732","aliases":["BIT-mattermost-2023-48732","GHSA-q7rx-w656-fwmv","GO-2024-2448"],"url":"https://o3.security/vulnerability/CVE-2023-48732","summary":"Keywords that trigger mentions are leaked to other users","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","published":"2024-01-02T09:52:01.147Z","modified":"2026-08-12T03:51:10.505846578Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","fixedVersion":"8.1.7"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server/v6","fixedVersion":"8.1.7"}],"fix":null,"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/48xxx/CVE-2023-48732.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-48732"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:10.505846578Z"}}