{"schema_version":"1.7.3","id":"GHSA-cffj-7w5c-jqjh","published":"2022-05-24T17:21:00Z","modified":"2025-11-05T19:57:11.458958Z","aliases":["CVE-2016-11063","GO-2025-4045"],"summary":"Mattermost Server vulnerable to Cross-site Scripting through file preview feature","details":"An issue was discovered in Mattermost Server before 3.5.1. XSS can occur via file preview.","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":"3.5.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-cffj-7w5c-jqjh/GHSA-cffj-7w5c-jqjh.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-11063"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/48533aa483879a19fdd2c1e09c596aa6c028d439"},{"type":"WEB","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"database_specific":{"cwe_ids":["CWE-79"],"github_reviewed":true,"github_reviewed_at":"2025-10-21T22:25:35Z","nvd_published_at":"2020-06-19T20:15:00Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"}]}