{"action":"Upgrade github.com/mattermost/mattermost-server to 0.0.0-20250520060012-d0380305ef7a or later.","affected":[{"introduced":"0"}],"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"],"ghsa_id":"GHSA-4578-6gjh-f2jm","id":"tcs_01M5KEVVYGWDHFKYRG7A2KGC9Q","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","url":"https://osv.dev/vulnerability/GHSA-4578-6gjh-f2jm"}],"summary":"Mattermost allows an unauthorized Guest user access to Playbook"}