CVE-2025-3228
Unauthorized Guest user access to Playbook
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly retrieve requestorInfo from playbooks handler for guest users which allows an attacker access to the playbook run.
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
Unauthorized Guest user access to Playbook
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly retrieve requestorInfo from playbooks handler for guest users which allows an attacker access to the playbook run.
- Record
CVE-2025-3228- 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-2025-18757
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly retrieve requestorInfo from playbooks handler for guest users which allows an attacker access to the playbook run.
- Record
EUVD-2025-18757- 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-4578-6gjh-f2jm
Mattermost allows an unauthorized Guest user access to Playbook
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly retrieve requestorInfo from playbooks handler for guest users which allows an attacker access to the playbook run.
- Record
GHSA-4578-6gjh-f2jm- 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 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly retrieve requestorInfo from playbooks handler for guest users which allows an attacker access to the playbook run.
- Record
CVE-2025-3228- 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
Unauthorized Guest user access to Playbook
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly retrieve requestorInfo from playbooks handler for guest users which allows an attacker access to the playbook run.
- Record
CVE-2025-3228- 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
- 2026-11-07
OSVGHSA-4578-6gjh-f2jm
Mattermost allows an unauthorized Guest user access to Playbook
Mattermost versions 10.5.x <= 10.5.5, 9.11.x <= 9.11.15, 10.8.x <= 10.8.0, 10.7.x <= 10.7.2, 10.6.x <= 10.6.5 fail to properly retrieve requestorInfo from playbooks handler for guest users which allows an attacker access to the playbook run.
- Record
GHSA-4578-6gjh-f2jm- 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-2025-3771 No score
Mattermost allows an unauthorized Guest user access to Playbook in github.com/mattermost/mattermost-server
Mattermost allows an unauthorized Guest user access to Playbook in github.com/mattermost/mattermost-server
- Record
GO-2025-3771- Updated
- 2026-11-02
OSVopenSUSE-SU-2025:15405-1 No score
govulncheck-vulndb-0.0.20250730T213748-1.1 on GA media
These are all security issues fixed in the govulncheck-vulndb-0.0.20250730T213748-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2025:15405-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/mattermost/mattermost-serverGo |
before 0.0.0-20250520060012-d0380305ef7a | 0.0.0-20250520060012-d0380305ef7a |
github.com/mattermost/mattermost/server/v8Go |
before 8.0.0-20250520060012-d0380305ef7a | 8.0.0-20250520060012-d0380305ef7a |
github.com/mattermost/mattermost/server/v8Go |
10.5.0 to 10.5.5 | 10.5.6 |
github.com/mattermost/mattermost/server/v8Go |
9.11.0 to 9.11.15 | 9.11.16 |
github.com/mattermost/mattermost/server/v8Go |
10.8.0 to 10.8.0 | 10.8.1 |
github.com/mattermost/mattermost/server/v8Go |
10.7.0 to 10.7.2 | 10.7.3 |
github.com/mattermost/mattermost/server/v8Go |
10.6.0 to 10.6.5 | 10.6.6 |
github.com/mattermost/mattermost/server/v8Go |
10.5.0 up to 10.5.6 | 10.5.6 |
github.com/mattermost/mattermost/server/v8Go |
9.11.0 up to 9.11.16 | 9.11.16 |
github.com/mattermost/mattermost/server/v8Go |
10.8.0 up to 10.8.1 | 10.8.1 |
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| Package | Affected | Fixed |
|---|---|---|
github.com/mattermost/mattermost/server/v8Go |
10.7.0 up to 10.7.3 | 10.7.3 |
github.com/mattermost/mattermost/server/v8Go |
10.6.0 up to 10.6.6 | 10.6.6 |
github.com/mattermost/mattermost-serverGo |
before 0.0.0-20250520060012-d0380305ef7a, 9.11.0+incompatible up to 9.11.16+incompatible, 10.5.0+incompatible up to 10.5.6+incompatible, 10.6.0+incompatible up to 10.6.6+incompatible, 10.7.0+incompatible up to 10.7.3+incompatible, 10.8.0+incompatible up to 10.8.1+incompatible | 0.0.0-20250520060012-d0380305ef7a9.11.16+incompatible10.5.6+incompatible10.6.6+incompatible10.7.3+incompatible10.8.1+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 56 CVEs |
before 0.0.20250730T213748-1.1 | 0.0.20250730T213748-1.1 |
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-2025-3228 is a medium vulnerability (CVSS 4.3) in Mattermost, published June 20, 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 0.0.0-20250520060012-d0380305ef7a.
References
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2025-3228
github.com/advisories/GHSA-4578-6gjh-f2jm
suse.com/security/cve/CVE-2024-44905
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