{"id":"CVE-2024-1952","details":"Mattermost version 8.1.x before 8.1.9 fails to sanitize data associated with permalinks when a plugin updates an ephemeral post, allowing an authenticated attacker who can control the ephemeral post update to access individual posts' contents in channels they are not a member of.\n\n","aliases":["BIT-mattermost-2024-1952","GHSA-r4fm-g65h-cr54","GO-2024-2635"],"modified":"2026-08-12T03:51:32.622643890Z","published":"2024-02-29T10:42:15.362Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"introduced":"8.1.0"},{"last_affected":"8.1.8"}],"source":"AFFECTED_FIELD"},{"source":"DESCRIPTION","extracted_events":[{"introduced":"8.1.x"},{"fixed":"8.1.9"}]}],"cna_assigner":"Mattermost","cwe_ids":["CWE-200"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/1xxx/CVE-2024-1952.json"},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/1xxx/CVE-2024-1952.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-1952"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"096c9ea12a2144f832e330e9a0f4d3862ca20b9f"},{"fixed":"4c83724516242843802cc75840b08ead6afbd37b"}],"database_specific":{"extracted_events":[{"introduced":"8.1.0"},{"fixed":"8.1.9"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*"}}],"versions":["v8.1.9-rc2","v8.1.9-rc1","v8.1.8","v8.1.8-rc2","v8.1.8-rc1","v8.1.7-rc3","v8.1.7","v8.1.7-rc2","v8.1.7-rc1","v8.1.6-rc1","v8.1.6","v8.1.5-rc2","v8.1.5","v8.1.5-rc1","v8.1.4-rc2","v8.1.4","v8.1.4-rc1","v8.1.3-rc2","v8.1.3","v8.1.3-rc1","v8.1.2-rc2","v8.1.2","v8.1.2-rc1","v8.1.1-rc2","v8.1.1","@mattermost/types@8.1.1","@mattermost/client@8.1.1","v8.1.1-rc1","v8.1.0-rc2","v8.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-1952.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}