{"id":"CVE-2023-6727","aliases":["BIT-mattermost-2023-6727","EUVD-2023-58941","GHSA-7g28-89m4-f55f"],"status":"published","title":"Leak Inaccessible Playbook Information via Channel Action IDOR","description":"Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked.","severity":{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0041,"percentile":0.35562,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2023-12-12T10:53:02Z","modified":"2026-10-28T02:30:41Z","fixes":[{"ecosystem":"Bitnami","package":"mattermost","fixed_in":["8.1.6","9.2.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"mattermost","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.6"},{"introduced":"9.2.0"},{"fixed":"9.2.2"}]}]}],"products":[{"vendor":"mattermost","product":"mattermost"},{"vendor":"mattermost","product":"mattermost_server"}],"references":[{"url":"https://mattermost.com/security-updates","tags":["x_transferred","Issue Tracking","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6727","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-7g28-89m4-f55f"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6727.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-6727","title":"Leak Inaccessible Playbook Information via Channel Action IDOR","description":"Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked. \n\n","status":"published","published":"2023-12-12T10:53:02.127Z","modified":"2025-05-24T10:25:36.906Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:35:25.095989Z"}],"euvd":[{"id":"EUVD-2023-58941","description":"Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked. \n\n","status":"published","published":"2023-12-12T10:53:02Z","modified":"2025-05-24T10:25:36Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T20:32:38.869898Z"}],"ghsa":[{"id":"GHSA-7g28-89m4-f55f","title":"Mattermost fails to perform correct authorization checks when creating a playbook action,...","description":"Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked. \n\n","status":"published","published":"2023-12-12T12:30:52Z","modified":"2023-12-12T12:30:53Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:55:10.896568Z"}],"nvd":[{"id":"CVE-2023-6727","description":"Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked. \n\n","status":"published","published":"2023-12-12T11:15:07.14Z","modified":"2026-06-17T06:51:18.597Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:08:54.010507Z"}],"osv":[{"id":"CVE-2023-6727","title":"Leak Inaccessible Playbook Information via Channel Action IDOR","description":"Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked. \n\n","status":"published","published":"2023-12-12T10:53:02.127Z","modified":"2026-10-28T02:30:41.412508714Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:44:36.851042Z"},{"id":"BIT-mattermost-2023-6727","description":"Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked.","status":"published","published":"2024-03-06T10:56:33.283Z","modified":"2025-04-03T14:40:37.652Z","updated_at":"2026-11-02T15:28:33.072289Z"}]}}