{"cve":"CVE-2025-20051","nvd":{"published":"2025-02-24T08:15:10.087","modified":"2026-06-17T08:40:35.313","status":"Analyzed","description":"Mattermost versions 10.4.x <= 10.4.1, 9.11.x <= 9.11.7, 10.3.x <= 10.3.2, 10.2.x <= 10.2.2 fail to properly validate input when patching and duplicating a board, which allows a user to read any arbitrary file on the system via duplicating a specially crafted block in Boards.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-22"],"references":["https://mattermost.com/security-updates"],"products":["mattermost:mattermost_server"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2025-20051","score":0.00611,"percentile":0.49262,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-v469-7wp6-7cvp","url":"https://osv.dev/vulnerability/GHSA-v469-7wp6-7cvp","summary":"Mattermost allows reading arbitrary files","modified":"2026-09-10T03:50:06.156738497Z","packages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8","ranges":["<8.0.0-20250122165010-4ed702ccff4e"],"fixed":["8.0.0-20250122165010-4ed702ccff4e"]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8","ranges":[">=9.11.0-rc1 <9.11.8"],"fixed":["9.11.8"]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8","ranges":[">=10.2.0-rc1 <10.2.3"],"fixed":["10.2.3"]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8","ranges":[">=10.3.0-rc1 <10.3.3"],"fixed":["10.3.3"]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8","ranges":[">=10.4.0-rc1 <10.4.2"],"fixed":["10.4.2"]}]},{"id":"GO-2025-3483","url":"https://osv.dev/vulnerability/GO-2025-3483","summary":"Mattermost allows reading arbitrary files in github.com/mattermost/mattermost-server","modified":"2026-02-04T03:24:57.485036Z","packages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","purl":"pkg:golang/github.com/mattermost/mattermost-server","ranges":[">=9.11.0-rc1+incompatible <9.11.8+incompatible",">=10.2.0-rc1+incompatible <10.2.3+incompatible",">=10.3.0-rc1+incompatible <10.3.3+incompatible",">=10.4.0-rc1+incompatible <10.4.2+incompatible"],"fixed":["9.11.8+incompatible","10.2.3+incompatible","10.3.3+incompatible","10.4.2+incompatible"]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server/v5","purl":"pkg:golang/github.com/mattermost/mattermost-server/v5","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server/v6","purl":"pkg:golang/github.com/mattermost/mattermost-server/v6","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost/server/v8","purl":"pkg:golang/github.com/mattermost/mattermost/server/v8","ranges":["<8.0.0-20250122165010-4ed702ccff4e"],"fixed":["8.0.0-20250122165010-4ed702ccff4e"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}