{"id":"CVE-2024-1952","aliases":["GHSA-r4fm-g65h-cr54","BIT-mattermost-2024-1952","GO-2024-2635"],"title":"Mattermost incorrectly allows access individual posts","summary":"Mattermost incorrectly allows access individual posts","severity":"low","cvss":3.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","vendor":"mattermost","product":"github.com/mattermost/mattermost/server/v8","ecosystem":"go","affected":["github.com/mattermost/mattermost/server/v8 >= 9.0.0, < 9.4.0"],"patched":["github.com/mattermost/mattermost/server/v8 9.4.0"],"published":"2024-02-29","updated":"2026-08-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-r4fm-g65h-cr54","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-1952"},{"url":"https://github.com/advisories/GHSA-r4fm-g65h-cr54"},{"url":"https://github.com/mattermost/mattermost"},{"url":"https://mattermost.com/security-updates"}],"tags":["osv","go"],"epss":0.00367,"epssPercentile":0.30425,"ingestedAt":"2026-08-07T19:14:17.601Z","slug":"CVE-2024-1952","body":"## Overview\n\nMattermost 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\n\n## Affected packages\n\n- `github.com/mattermost/mattermost/server/v8 >= 9.0.0, < 9.4.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/mattermost/mattermost/server/v8 9.4.0`","depth":"sunlit","depthScore":17,"depthScoreParts":{"impact":17.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}