{"action":"Upgrade github.com/mattermost/mattermost-server to 4.0.5 or later.","affected":[{"fixed":"4.0.5","introduced":"0"},{"fixed":"4.1.1","introduced":"4.1.0"},{"fixed":"4.2.0","introduced":"4.2.0-rc1"}],"component":"github.com/mattermost/mattermost-server","cve_ids":["CVE-2017-18892"],"ecosystem":"Go","epss":0.0069,"exploited":false,"fixed_versions":["4.0.5","4.1.1","4.2.0"],"ghsa_id":"GHSA-wj5w-qghh-gvqp","id":"tcs_01M5KFQSYMW5A3S8SNEYZF4K9C","modified_at":"2026-02-03T02:58:48.529676Z","published_at":"2022-05-24T17:21:05Z","references":["https://osv.dev/vulnerability/GHSA-wj5w-qghh-gvqp","https://nvd.nist.gov/vuln/detail/CVE-2017-18892","https://github.com/mattermost/mattermost/commit/4e05fbffed4d7ad75c0bb55d67d2c6f7cf9eaad6","https://github.com/mattermost/mattermost/commit/d76946bdb545aba4088943fc523dabb459d22873","https://github.com/mattermost/mattermost/commit/f5167f3ba645b829f4c28530e13be6c3db967255","https://github.com/mattermost/mattermost","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":6.1},"sources":[{"source":"osv","source_id":"GHSA-wj5w-qghh-gvqp","url":"https://osv.dev/vulnerability/GHSA-wj5w-qghh-gvqp"}],"summary":"Mattermost Server does not neutralize HTML content in an Email template field"}