{"id":"CVE-2023-50333","aliases":["BIT-mattermost-2023-50333","GHSA-9w97-9rqx-8v4j","GO-2024-2444"],"url":"https://o3.security/vulnerability/CVE-2023-50333","summary":"Lack of restriction to manage group names for freshly demoted guests","details":"Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names.\n\n","published":"2024-01-02T09:53:01.990Z","modified":"2026-08-12T03:51:39.164789838Z","cvss":{"score":3.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","fixedVersion":"8.1.7"}],"fix":{"url":"https://github.com/mattermost/mattermost/commit/61dd452fb2fcd3ac6f7b2e050f7f0a93a92d95fc","label":"mattermost/mattermost@61dd452"},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50333.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50333"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/61dd452fb2fcd3ac6f7b2e050f7f0a93a92d95fc"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:39.164789838Z"}}