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CVE-2025-3913

Team Privacy Settings Authorization Bypass in Mattermost Server

5.3 MediumFix available

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

0.33%Up 0.3 points since May 30, 2025
90%50%10%1%

What each source reports

CVE List Score used 5.3

Team Privacy Settings Authorization Bypass in Mattermost Server

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

Record
CVE-2025-3913
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-863
Updated
2026-11-02
EUVDEUVD-2025-16395 5.3

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

Record
EUVD-2025-16395
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-4mmr-2w8p-whcr 5.3

Mattermost improperly allows team administrators to modify team invites

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

Record
GHSA-4mmr-2w8p-whcr
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-863
Updated
2026-11-02
NVD 5.3

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

Record
CVE-2025-3913
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 3.1
3.8 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-863
Updated
2026-11-02
OSV 5.3

Team Privacy Settings Authorization Bypass in Mattermost Server

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

Record
CVE-2025-3913
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-863
Updated
2026-11-02
OSVGHSA-4mmr-2w8p-whcr 5.3

Mattermost improperly allows team administrators to modify team invites

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

Record
GHSA-4mmr-2w8p-whcr
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness
CWE-863
Updated
2026-11-02
OSVGO-2025-3724 No score

Mattermost improperly allows team administrators to modify team invites in github.com/mattermost/mattermost-server

Mattermost improperly allows team administrators to modify team invites in github.com/mattermost/mattermost-server

Record
GO-2025-3724
Updated
2026-11-02
OSVopenSUSE-SU-2025:15225-1 No score

govulncheck-vulndb-0.0.20250612T141001-1.1 on GA media

These are all security issues fixed in the govulncheck-vulndb-0.0.20250612T141001-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15225-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/mattermost/mattermost/server/v8
Go
 10.7.0-rc1 up to 10.7.1
10.7.1
github.com/mattermost/mattermost/server/v8
Go
 10.6.0-rc1 up to 10.6.3
10.6.3
github.com/mattermost/mattermost/server/v8
Go
 10.5.0-rc1 up to 10.5.4
10.5.4
github.com/mattermost/mattermost/server/v8
Go
 9.0.0-rc1 up to 9.11.13
9.11.13
github.com/mattermost/mattermost/server/v8
Go
 before 8.0.0-20250412152950-02c76784380a
8.0.0-20250412152950-02c76784380a
github.com/mattermost/mattermost-server
Go
 9.0.0-rc1+incompatible up to 9.11.13+incompatible, 10.5.0-rc1+incompatible up to 10.5.4+incompatible, 10.6.0-rc1+incompatible up to 10.6.3+incompatible, 10.7.0-rc1+incompatible up to 10.7.1+incompatible
9.11.13+incompatible10.5.4+incompatible10.6.3+incompatible10.7.1+incompatible
github.com/mattermost/mattermost-server/v5
Go
 All versions None known
github.com/mattermost/mattermost-server/v6
Go
 All versions None known
govulncheck-vulndb
openSUSE:Tumbleweed
From an advisory covering 29 CVEs
 before 0.0.20250612T141001-1.1
0.0.20250612T141001-1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-3913 is a medium vulnerability (CVSS 5.3) in Mattermost, published May 29, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 25th percentile. Fixed in github.com/mattermost/mattermost/server/v8 10.7.1.

References

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