CVE-2025-24920

mediumpriority · track · 17OT risk · elevatedEPSS 0.002 · 15 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.24% (15th) EPSS

CVSS 4.3 · medium

Is it mine?

31 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-28

Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8, 10.5.x <= 10.5.0 fail to restrict bookmark creation and updates in archived channels, which allows authenticated users created or update bookmarked in archived channels

cvss

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

4.3

010

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

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 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 · 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

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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-863USprimaryCWE-863US

affected products (31)

Products and version ranges known to be affected.

Mattermost Mattermost <10.3.4all versionscert_bundDE
Mattermost Mattermost <10.4.3all versionscert_bundDE
Mattermost Mattermost <10.5.1all versionscert_bundDE
Mattermost Mattermost <10.6.0all versionscert_bundDE
Mattermost Mattermost <9.11.9all versionscert_bundDE
Mattermost Mattermost< 10.3.4cert_bundDE
Mattermost Mattermost< 10.4.3cert_bundDE
Mattermost Mattermost< 10.5.1cert_bundDE
Mattermost Mattermost< 10.6.0cert_bundDE
Mattermost Mattermost< 9.11.9cert_bundDE
Mattermost Mattermost≤ 10.5.0enisa_euvdEU
Mattermost Mattermost≤ 9.11.0 ≤9.11.8enisa_euvdEU
Mattermost Mattermost≤ 10.4.0 ≤10.4.2enisa_euvdEU
Mattermost Mattermost≤ 10.3.0 ≤10.3.3enisa_euvdEU
mattermost mattermost server10.3.0 → 10.3.4nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server10.4.0 → 10.4.3nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server10.5.0 → 10.5.1nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server9.11.0 → 9.11.9nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Bitnami mattermost10.3.0 → 10.5.1osvUSpkg:bitnami/mattermost
Bitnami mattermost9.11.0 → 10.0.0osvUSpkg:bitnami/mattermost

showing 20 of 31

advisories (4)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-0410Mattermost: Mehrere SchwachstellenDeutsch2025-02-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Mattermost ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Informationen offenzulegen, bestimmte Befehle auszuführen und die Verfügbarkeit zu beeinflussen.
GHSA-rp74-x43m-cpw3Mattermost Fails to Restrict Bookmark Creation and Updates in Archived Channels2025-03-21ghsa · osvUS
Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8, 10.5.x <= 10.5.0 fail to restrict bookmark creation and updates in archived channels, which allows authenticated users created or update bookmarked in archived channels
BIT-mattermost-2025-249202025-03-28vendor · osvUS
Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8, 10.5.x <= 10.5.0 fail to restrict bookmark creation and updates in archived channels, which allows authenticated users created or update bookmarked in archived channels
GO-2025-3552Mattermost Fails to Restrict Bookmark Creation and Updates in Archived Channels in github.com/mattermost/mattermost-server2025-03-25vendor · osvUS
Mattermost Fails to Restrict Bookmark Creation and Updates in Archived Channels 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 osv cert_bund nvd NVD CVE.org MITRE

published 2025-03-21modified 2026-06-17

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+5016 more

references (5)

External citations — patches, advisories, analysis.

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