{"id":"CVE-2017-18900","aliases":["GHSA-8q4v-35v6-g8wr","GO-2026-4303"],"url":"https://o3.security/vulnerability/CVE-2017-18900","summary":"Mattermost Server is vulnerable CSV Injection ","details":"An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows CSV injection via a compliance report.","published":"2020-06-19T19:15:11.497Z","modified":"2026-10-24T10:30:51.823887294Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.01285,"percentile":0.67474,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"3.10.3"},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","fixedVersion":"4.0.3"}],"fix":{"url":"https://github.com/mattermost/mattermost/commit/eaa598aba901a20c65c52dd1e1b82e7e1dffb962","label":"mattermost/mattermost@eaa598a"},"references":[{"type":"ADVISORY","url":"https://mattermost.com/security-updates/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-18900"},{"type":"WEB","url":"https://github.com/mattermost/mattermost/commit/eaa598aba901a20c65c52dd1e1b82e7e1dffb962"},{"type":"PACKAGE","url":"https://github.com/mattermost/mattermost"},{"type":"WEB","url":"https://mattermost.com/security-updates"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:51.823887294Z"}}