CVE-2025-24526
Channel export permitted on archived channel when viewing archived channels is disabled
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Channel export permitted on archived channel when viewing archived channels is disabled
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
- Record
CVE-2025-24526- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2025-4307
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
- Record
EUVD-2025-4307- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q8p2-2hwc-jw64
Mattermost fails to restrict channel export of archived channels
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
- Record
GHSA-q8p2-2hwc-jw64- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
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
- Record
CVE-2025-24526- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
Channel export permitted on archived channel when viewing archived channels is disabled
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
- Record
CVE-2025-24526- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVGHSA-q8p2-2hwc-jw64
Mattermost fails to restrict channel export of archived channels
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
- Record
GHSA-q8p2-2hwc-jw64- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVGO-2025-3481No score
Mattermost fails to restrict channel export of archived channels in github.com/mattermost/mattermost-server
Mattermost fails to restrict channel export of archived channels in github.com/mattermost/mattermost-server
- Record
GO-2025-3481- Updated
- 2026-11-02
OSVopenSUSE-SU-2025:14889-1No score
govulncheck-vulndb-0.0.20250312T181707-1.1 on GA media
These are all security issues fixed in the govulncheck-vulndb-0.0.20250312T181707-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2025:14889-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/mattermost/mattermost/server/v8Go | before 8.0.0-20250110161910-96195f1bd746 | 8.0.0-20250110161910-96195f1bd746 |
github.com/mattermost/mattermost/server/v8Go | 9.11.0-rc1 up to 9.11.8 | 9.11.8 |
github.com/mattermost/mattermost/server/v8Go | 10.2.0-rc1 up to 10.2.3 | 10.2.3 |
github.com/mattermost/mattermost/server/v8Go | 10.3.0-rc1 up to 10.3.3 | 10.3.3 |
github.com/mattermost/mattermost/server/v8Go | 10.4.0-rc1 up to 10.4.2 | 10.4.2 |
github.com/mattermost/mattermost-serverGo | 9.11.0-rc1+incompatible up to 9.11.8+incompatible, 10.2.0-rc1+incompatible up to 10.2.3+incompatible, 10.3.0-rc1+incompatible up to 10.3.3+incompatible, 10.4.0-rc1+incompatible up to 10.4.2+incompatible | 9.11.8+incompatible10.2.3+incompatible10.3.3+incompatible10.4.2+incompatible |
github.com/mattermost/mattermost-server/v5Go | All versions | None known |
github.com/mattermost/mattermost-server/v6Go | All versions | None known |
govulncheck-vulndbopenSUSE:Tumbleweed From an advisory covering 31 CVEs | before 0.0.20250312T181707-1.1 | 0.0.20250312T181707-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-24526 is a medium vulnerability (CVSS 4.3) in Mattermost, published February 24, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 22nd percentile. Fixed in github.com/mattermost/mattermost/server/v8 8.0.0-20250110161910-96195f1bd746.
References
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2025-24526
github.com/mattermost/mattermost-plugin-channel-export/issues/51
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suse.com/security/cve/CVE-2024-57603