{"schema_version":"1.7.3","id":"BIT-mattermost-2025-27715","published":"2025-03-28T07:21:49.847Z","modified":"2025-04-03T14:40:37.652Z","aliases":["CVE-2025-27715","GHSA-cw7q-5cgc-h3h9","GO-2025-3555"],"details":"Mattermost versions 9.11.x <= 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them.","affected":[{"package":{"name":"mattermost","ecosystem":"Bitnami","purl":"pkg:bitnami/mattermost"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.11.0"},{"fixed":"10.0.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/mattermost/BIT-mattermost-2025-27715.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N"}]}],"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27715"}],"database_specific":{"cpes":["cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*"],"severity":"Low"}}