{"id":"GO-2025-4204","summary":"Mattermost Server does not properly restrict use of slash commands in github.com/mattermost/mattermost-server","details":"Mattermost Server does not properly restrict use of slash commands in github.com/mattermost/mattermost-server","aliases":["CVE-2017-18886","GHSA-wvjg-33p9-938h"],"modified":"2026-03-17T05:04:34.401450Z","published":"2025-12-15T19:37:35Z","database_specific":{"url":"https://pkg.go.dev/vuln/GO-2025-4204","review_status":"UNREVIEWED"},"references":[{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-wvjg-33p9-938h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18886"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"affected":[{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.1.2+incompatible"},{"introduced":"4.2.0-rc1+incompatible"},{"fixed":"4.2.1+incompatible"},{"introduced":"4.3.0-rc1+incompatible"},{"fixed":"4.3.0+incompatible"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://vuln.go.dev/ID/GO-2025-4204.json"}}],"schema_version":"1.7.5"}