{"id":"CVE-2023-47168","aliases":["GHSA-4ghx-8jw8-p76q"],"title":"Mattermost Open Redirect vulnerability","summary":"Mattermost Open Redirect vulnerability","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","vendor":"mattermost","product":"github.com/mattermost/mattermost/server/v8","ecosystem":"go","affected":["github.com/mattermost/mattermost/server/v8 >= 9.1.0, < 9.1.1","github.com/mattermost/mattermost/server/v8 >= 9.0.0, < 9.0.2","github.com/mattermost/mattermost/server/v8 < 8.1.4","github.com/mattermost/mattermost-server/v6 < 7.8.13"],"patched":["github.com/mattermost/mattermost/server/v8 9.1.1","github.com/mattermost/mattermost/server/v8 9.0.2","github.com/mattermost/mattermost/server/v8 8.1.4","github.com/mattermost/mattermost-server/v6 7.8.13"],"published":"2023-11-27","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:04.112971450Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-4ghx-8jw8-p76q","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-47168"},{"url":"https://github.com/mattermost/mattermost"},{"url":"https://mattermost.com/security-updates"}],"tags":["osv","go"],"epss":0.00403,"epssPercentile":0.34407,"ingestedAt":"2026-09-12T03:13:01.752Z","slug":"CVE-2023-47168","body":"## Overview\n\nMattermost fails to properly check a redirect URL parameter allowing for an open redirect was possible when the user clicked \"Back to Mattermost\" after providing a invalid custom url scheme in /oauth/{service}/mobile_login?redirect_to=\n\n\n\n## Affected packages\n\n- `github.com/mattermost/mattermost/server/v8 >= 9.1.0, < 9.1.1`\n- `github.com/mattermost/mattermost/server/v8 >= 9.0.0, < 9.0.2`\n- `github.com/mattermost/mattermost/server/v8 < 8.1.4`\n- `github.com/mattermost/mattermost-server/v6 < 7.8.13`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/mattermost/mattermost/server/v8 9.1.1`\n- `github.com/mattermost/mattermost/server/v8 9.0.2`\n- `github.com/mattermost/mattermost/server/v8 8.1.4`\n- `github.com/mattermost/mattermost-server/v6 7.8.13`","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}