CVE-2025-47871

mediumpriority · track · 22OT risk · elevatedEPSS 0.002 · 10 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.20% (10th) EPSS

CVSS 5.4 · medium

Is it mine?

30 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

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 validate channel membership when retrieving playbook run metadata, allowing authenticated users who are playbook members but not channel members to access sensitive information about linked private channels including channel name, display name, and participant count through the run metadata API endpoint.

cvss

Technical severity, 0–10. One row per scoring source.

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.4mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.5

v3.14.3mediumAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nsecondary · ENISA EU

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nsecondary · responsibledisclosure@mattermost.comexploitability 2.8 · impact 1.4

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nsecondary · OSV

v3.15mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-863USCWE-863USCWE-863US

affected products (30)

Products and version ranges known to be affected.

Mattermost Mattermost≤ 10.6.0 ≤10.6.5enisa_euvdEU
Mattermost Mattermost≤ 10.5.0 ≤10.5.5enisa_euvdEU
Mattermost Mattermostall versionsenisa_euvdEU
Mattermost Mattermost≤ 10.8.0enisa_euvdEU
Mattermost Mattermost≤ 9.11.0 ≤9.11.15enisa_euvdEU
Mattermost Mattermost≤ 10.7.0 ≤10.7.2enisa_euvdEU
Mattermost Inc Mattermost≤ 10.8.0fstec_bduRU
Mattermost Inc Mattermost10.5.0 → 10.5.5fstec_bduRU
Mattermost Inc Mattermost10.6.0 → 10.6.5fstec_bduRU
Mattermost Inc Mattermost10.7.0 → 10.7.2fstec_bduRU
Mattermost Inc Mattermost9.11.0 → 9.11.15fstec_bduRU
mattermost mattermost server10.5.0 → 10.5.6nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server10.6.0 → 10.6.6nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server10.7.0 → 10.7.3nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server= 10.8.0nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server9.11.0 → 9.11.16nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Go github.com/mattermost/mattermost-server< 0.0.0-20250513065225-4ae5d647fb88osvUSpkg:golang/github.com/mattermost/mattermost-server
Go github.com/mattermost/mattermost-server10.5.0+incompatible → 10.5.6+incompatibleosvUSpkg:golang/github.com/mattermost/mattermost-server
Go github.com/mattermost/mattermost-server10.6.0+incompatible → 10.6.6+incompatibleosvUSpkg:golang/github.com/mattermost/mattermost-server
Go github.com/mattermost/mattermost-server10.7.0+incompatible → 10.7.3+incompatibleosvUSpkg:golang/github.com/mattermost/mattermost-server

showing 20 of 30

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-wgvp-jj4w-88hfMattermost Incorrect Authorization vulnerability2025-06-30ghsa · osvUS
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 validate channel membership when retrieving playbook run metadata, allowing authenticated users who are playbook members but not channel members to access sensitive information about linked private channels including channel name, display name, and participant count through the run metadata API endpoint.
GO-2025-3797Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server2025-07-28vendor · osvUS
Mattermost Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv nvd NVD CVE.org MITRE

published 2025-06-30modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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