{"action":"Upgrade github.com/mattermost/mattermost-server to 0.0.0-20250520060012-d0380305ef7a or later.","affected":[{"fixed":"9.11.16+incompatible","introduced":"0"},{"fixed":"10.5.6+incompatible","introduced":"10.5.0+incompatible"},{"fixed":"10.6.6+incompatible","introduced":"10.6.0+incompatible"},{"fixed":"10.7.3+incompatible","introduced":"10.7.0+incompatible"},{"fixed":"10.8.1+incompatible","introduced":"10.8.0+incompatible"}],"component":"github.com/mattermost/mattermost-server","cve_ids":["CVE-2025-3228"],"ecosystem":"Go","epss":0.00294,"exploited":false,"fixed_versions":["0.0.0-20250520060012-d0380305ef7a","9.11.16+incompatible","10.5.6+incompatible","10.6.6+incompatible","10.7.3+incompatible","10.8.1+incompatible"],"ghsa_id":"GHSA-4578-6gjh-f2jm","id":"tcs_01M5KG92EDW5FWBAW4MTCD40RC","modified_at":"2026-03-03T04:57:20.979939Z","published_at":"2025-07-28T19:57:13Z","references":["https://osv.dev/vulnerability/GO-2025-3771","https://github.com/advisories/GHSA-4578-6gjh-f2jm","https://nvd.nist.gov/vuln/detail/CVE-2025-3228","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GO-2025-3771","url":"https://osv.dev/vulnerability/GO-2025-3771"},{"source":"nvd","source_id":"CVE-2025-3228","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3228"}],"summary":"Mattermost allows an unauthorized Guest user access to Playbook in github.com/mattermost/mattermost-server"}