{"schema_version":"1.7.3","id":"GHSA-x33g-375j-jhf7","published":"2022-05-24T17:21:07Z","modified":"2026-02-22T23:06:34.988796Z","aliases":["CVE-2017-18916","GO-2026-4467"],"summary":"Mattermost Server has Improper Authorization for Integration Requests","details":"An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. API endpoint access control does not honor an integration permission restriction.","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":"3.6.7-0.20170420152529-0968e4079e0a"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-x33g-375j-jhf7/GHSA-x33g-375j-jhf7.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.7.0"},{"fixed":"3.7.5"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-x33g-375j-jhf7/GHSA-x33g-375j-jhf7.json"}},{"package":{"name":"github.com/mattermost/mattermost-server","ecosystem":"Go","purl":"pkg:golang/github.com/mattermost/mattermost-server"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.8.0"},{"fixed":"3.8.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-x33g-375j-jhf7/GHSA-x33g-375j-jhf7.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18916"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/0968e4079e0aa670254f3fe3a7248d126e3cf877"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/b74e85653660525d351d090a1e1874ae933bcbc8"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/fb325cc339eb8d8efb60dbadc48fd38897201c6f"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-284"],"github_reviewed":true,"github_reviewed_at":"2026-02-06T22:58:44Z","nvd_published_at":"2020-06-19T20:15:00Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}]}