{"schema_version":"1.9.0","id":"CVE-2025-13767","published":"2025-12-24T08:01:27.157Z","modified":"2026-08-12T03:51:14.797069157Z","aliases":["GHSA-fmqf-pmcm-8cx9","GO-2025-4259"],"related":["SUSE-SU-2026:0757-1","openSUSE-SU-2026:21483-1"],"summary":"Unauthorized Read Access to Private Channel Posts via Mattermost Jira Plugin","details":"Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fails to validate user channel membership when attaching Mattermost posts as comments to Jira issues, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"5b955468ea1ea8b56c0fb10feb258a36a767d7bb"},{"fixed":"7c36acb68ce3c69defaea540623f794c84ecba93"},{"introduced":"ba3dc1612ce8f37bf9814b1ea6364181fb5abd62"},{"fixed":"463e0d0d3930782d3c975da26c991dcbfccd751c"},{"introduced":"0"},{"fixed":"92b1e705225d97ce54d9f720f2e7aa66dc2a086b"},{"introduced":"e62f350cd7a896c45a0e025f44cb8915f5597854"},{"fixed":"317025c411ec8c34381fdd4f137a17c63895a4f2"}],"database_specific":{"cpe":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"10.11.0"},{"fixed":"10.11.8"},{"introduced":"10.12.0"},{"fixed":"10.12.4"},{"introduced":"11.0.0"},{"fixed":"11.0.6"},{"introduced":"11.1.0"},{"fixed":"11.1.1"}],"source":"CPE_RANGE"}}],"versions":["v11.1.1-rc2","v11.1.1-rc1","v10.11.7","v10.12.3","v11.0.5","v11.1.0-rc4","v11.1.0","mattermost-redux@11.1.0","@mattermost/types@11.1.0","@mattermost/client@11.1.0","v10.11.6","mattermost-redux@11.0.4","@mattermost/types@11.0.4","@mattermost/client@11.0.4","v10.11.5","v10.12.2","v11.0.4","v11.0.3","v11.0.3-rc1","v10.12.1","v10.11.4-rc3","v10.11.4","v11.0.2","v10.11.4-rc2","v11.0.1-rc3","v11.0.1","v10.11.4-rc1","v10.12.1-rc1","v11.0.1-rc2","v11.0.1-rc1","v11.0.0-alpha.1","v10.11.3","server/public/v0.1.19","server/public/v0.1.18","v10.12.0","mattermost-redux@10.12.0","@mattermost/types@10.12.0","@mattermost/client@10.12.0","server/public/v0.1.17","v10.11.2-rc2","v10.11.2","v10.11.2-rc1","v10.11.1","v10.11.1-rc1","v10.11.0-rc3","v10.11.0","mattermost-redux@10.11.0","@mattermost/types@10.11.0","@mattermost/client@10.11.0","server/public/v0.1.16","preview-v0.1","server/public/v0.1.15","server/public/v0.1.14","server/public/v0.1.13","server/public/v0.1.12","server/public/v0.1.11","server/public/v0.1.10","server/public/v0.1.9","server/public/v0.1.8","server/public/v0.1.7","server/public/v0.1.6","server/public/v0.1.5","server/public/v0.1.4","server/public/v0.1.3","server/public/v0.1.2","server/public/v0.1.1","server/public/v0.1.0","server/public/v0.0.18","server/public/v0.0.17","server/public/v0.0.16","server/public/v0.0.15","server/public/v0.0.14","server/public/v0.0.13","server/public/v0.0.12","server/public/v0.0.11","server/public/v0.0.10","server/public/v0.0.9","server/public/v0.0.8","server/public/v0.0.7","server/public/v0.0.6","server/public/v0.0.5","cloud-2022-11-24-1","cloud-2022-11-11-1","cloud-2022-10-06-1","cloud-2022-09-08-1","cloud-2022-08-10-1","cloud-2022-07-20-1","v5.2.0-rc2","v5.2.0-rc1","v5.1.0-rc1","v5.0.0-rc1","v4.10.0-rc1","v4.9.0-rc1","v4.8.0-rc1","v4.7.0-rc1","v4.6.0-rc2","v4.6.0-rc1","v4.5.0-rc1","v4.4.0-rc1","v4.3.0-rc1","v4.2.0-rc1","v0.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-13767.json"}}],"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/13xxx/CVE-2025-13767.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-13767"}],"database_specific":{"cna_assigner":"Mattermost","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/13xxx/CVE-2025-13767.json","unresolved_ranges":[{"extracted_events":[{"introduced":"11.1.0"},{"last_affected":"11.1.0"},{"introduced":"11.0.0"},{"last_affected":"11.0.5"},{"introduced":"10.12.0"},{"last_affected":"10.12.3"},{"introduced":"10.11.0"},{"last_affected":"10.11.7"}],"source":"AFFECTED_FIELD"}]},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}