{"action":"Upgrade github.com/mattermost/mattermost-server to 4.2.0+incompatible or later.","affected":[{"fixed":"4.2.0+incompatible","introduced":"4.2.0-rc1+incompatible"},{"fixed":"4.3.0+incompatible","introduced":"4.3.0-rc1+incompatible"}],"component":"github.com/mattermost/mattermost-server","cve_ids":["CVE-2017-18874"],"ecosystem":"Go","epss":0.01243,"exploited":false,"fixed_versions":["4.2.0+incompatible","4.3.0+incompatible"],"ghsa_id":"GHSA-8qg8-c7mw-6fj7","id":"tcs_01M5KGBV41NWW95RHJ3V91MS11","modified_at":"2025-12-15T21:10:54.556019Z","published_at":"2025-12-15T20:33:49Z","references":["https://osv.dev/vulnerability/GO-2025-4148","https://github.com/advisories/GHSA-8qg8-c7mw-6fj7","https://nvd.nist.gov/vuln/detail/CVE-2017-18874","https://github.com/mattermost/mattermost/commit/6be8113eb60cf5ddd2dc1c3f4db05cae0c183086","https://github.com/mattermost/mattermost/commit/6d3cb2ce07fc799832081e93843b405b390057fa","https://github.com/mattermost/mattermost/commit/fadd9514f6e71590aba781a7035e1de4150137b0","https://mattermost.com/security-updates"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2025-4148","url":"https://osv.dev/vulnerability/GO-2025-4148"}],"summary":"Mattermost Server is vulnerable to Directory Traversal by System Admins in github.com/mattermost/mattermost-server"}