mattermost/mattermost · Security
Mattermost fails to restrict channel export of archived channels
- GHSA ID
- GHSA-q8p2-2hwc-jw64
- CVE ID
- CVE-2025-24526
- Severity
- medium
- Published
- Updated
- CVSS
- 4.3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- CVSS v3
- 4.3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Description
Mattermost versions 10.1.x <= 10.1.3, 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 restrict channel export of archived channels when the "Allow users to view archived channels" is disabled which allows a user to export channel contents when they shouldn't have access to it
CWEs
- CWE-863 · Incorrect Authorization
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-24526 ↗
- https://mattermost.com/security-updates ↗
- https://github.com/mattermost/mattermost-plugin-channel-export/issues/51 ↗
- https://github.com/mattermost/mattermost-plugin-channel-export/commit/3c052b66207fb734bfc4c948941e7f7522a82550 ↗
- https://github.com/mattermost/mattermost/commit/96195f1bd7467f572525c35b5087acaeb53daa63 ↗
- https://github.com/advisories/GHSA-q8p2-2hwc-jw64 ↗