{"action":"Upgrade github.com/mattermost/mattermost to 10.5.13 or later.","affected":[{"fixed":"10.11.5","introduced":"10.11.0"},{"fixed":"10.5.13","introduced":"10.5.0"}],"component":"github.com/mattermost/mattermost","cve_ids":["CVE-2025-13870"],"ecosystem":"Go","epss":0.00223,"exploited":false,"fixed_versions":["10.11.5","10.5.13"],"ghsa_id":"GHSA-58w6-w55x-6wq8","id":"tcs_01M5KEY1H4NDV22GQD4H656ZNB","modified_at":"2025-12-09T17:57:40.685506Z","published_at":"2025-12-02T12:30:28Z","references":["https://osv.dev/vulnerability/GHSA-58w6-w55x-6wq8","https://nvd.nist.gov/vuln/detail/CVE-2025-13870","https://github.com/mattermost/mattermost/commit/ba86dfc5876b354b9d3c20ff45c08ca6f8426149","https://github.com/mattermost/mattermost","https://mattermost.com/security-updates"],"severity":{"label":"low","score":3.1},"sources":[{"source":"osv","source_id":"GHSA-58w6-w55x-6wq8#Go/github.com/mattermost/mattermost","url":"https://osv.dev/vulnerability/GHSA-58w6-w55x-6wq8"}],"summary":"Mattermost fails to validate user permissions in Boards"}