{"action":"Upgrade github.com/mattermost/mattermost-server to 3.9.2 or later.","affected":[{"fixed":"3.9.2","introduced":"0"},{"fixed":"3.10.2","introduced":"3.10.0"}],"component":"github.com/mattermost/mattermost-server","cve_ids":["CVE-2017-18904"],"ecosystem":"Go","epss":0.0069,"exploited":false,"fixed_versions":["3.9.2","3.10.2"],"ghsa_id":"GHSA-8pff-p3gx-w4jf","id":"tcs_01M5KF42E48GDH5N56D4KR43PD","modified_at":"2026-02-03T03:01:55.912139Z","published_at":"2022-05-24T17:21:06Z","references":["https://osv.dev/vulnerability/GHSA-8pff-p3gx-w4jf","https://nvd.nist.gov/vuln/detail/CVE-2017-18904","https://github.com/mattermost/mattermost/commit/6a2754376c8c8270be5e11e3fdab589659d0cc8d","https://github.com/mattermost/mattermost/commit/bde06a7bc3a03a56da224c1ffcd8bffb0af8071b","https://github.com/mattermost/mattermost/commit/f06c5bef4d78966c60b153bbec6eea4ec0be9e68","https://github.com/mattermost/mattermost","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"GHSA-8pff-p3gx-w4jf","url":"https://osv.dev/vulnerability/GHSA-8pff-p3gx-w4jf"}],"summary":"Mattermost Server vulnerable to XSS via an uploaded file"}