{"id":"GHSA-p5pr-vm3j-jxxf","summary":"Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerability","details":"Mattermost fails to properly validate the \"Show Full Name\" option in a few endpoints in Mattermost Boards, allowing a member to get the full name of another user even if the Show Full Name option was disabled. \n\n","aliases":["CVE-2023-45223"],"modified":"2026-09-10T03:50:04.192782518Z","published":"2023-11-27T12:30:54Z","database_specific":{"cwe_ids":["CWE-200"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2023-11-28T20:49:52Z","nvd_published_at":"2023-11-27T10:15:07Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-45223"},{"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":"8.1.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-p5pr-vm3j-jxxf/GHSA-p5pr-vm3j-jxxf.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":"7.8.13"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-p5pr-vm3j-jxxf/GHSA-p5pr-vm3j-jxxf.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"}]}