{"action":"Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20250520060012-d0380305ef7a or later.","affected":[{"fixed":"8.0.0-20250520060012-d0380305ef7a","introduced":"0"},{"fixed":"10.5.6","introduced":"10.5.0"},{"fixed":"9.11.16","introduced":"9.11.0"},{"fixed":"10.8.1","introduced":"10.8.0"},{"fixed":"10.7.3","introduced":"10.7.0"},{"fixed":"10.6.6","introduced":"10.6.0"}],"component":"github.com/mattermost/mattermost/server/v8","cve_ids":["CVE-2025-3228"],"ecosystem":"Go","epss":0.00294,"exploited":false,"fixed_versions":["8.0.0-20250520060012-d0380305ef7a","10.5.6","9.11.16","10.8.1","10.7.3","10.6.6"],"ghsa_id":"GHSA-4578-6gjh-f2jm","id":"tcs_01M5KEVW428WSX6HHBYZG3W70K","modified_at":"2025-07-28T20:42:12.817521Z","published_at":"2025-06-20T15:30:38Z","references":["https://osv.dev/vulnerability/GHSA-4578-6gjh-f2jm","https://nvd.nist.gov/vuln/detail/CVE-2025-3228","https://github.com/mattermost/mattermost","https://mattermost.com/security-updates"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GHSA-4578-6gjh-f2jm#Go/github.com/mattermost/mattermost/server/v8","url":"https://osv.dev/vulnerability/GHSA-4578-6gjh-f2jm"}],"summary":"Mattermost allows an unauthorized Guest user access to Playbook"}