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Mattermost

Records671All Threatist records
Exploited (KEV)0None in CISA KEV
CVSS critical26CVSS 9.0–10.0
CVSS high130CVSS 7.0–8.9

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Mattermost records in CISA KEV

No Mattermost vulnerabilities are listed in CISA KEV.

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Records

671 records

Priority MEDIUM 64

Mattermost versions 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 properly validate board blocks when importing boards which allows an attacker could read any arbitrary file on the system…

CVSS 3.1CRITICAL 9.9 Network Low privileges No interaction EPSS 0.24223 Published 2025-02-24 Fixed in 10.5.0, 10.4.2 +4 CWE-22
Priority MEDIUM 45

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 sanitize filenames in the archive extractor which allows authenticated users to write files to arbitra…

CVSS 3.1CRITICAL 9.9 Network Low privileges No interaction EPSS 0.01016 Published 2025-06-20 Fixed in 10.9.0, 10.5.6 +6 CWE-427
Priority MEDIUM 44

Mattermost versions 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 properly validate input when patching and duplicating a board, which allows a user to read any arbitrary file on the syst…

CVSS 3.1CRITICAL 9.9 Network Low privileges No interaction EPSS 0.00611 Published 2025-02-24 Fixed in 10.5.0, 10.4.2 +4 CWE-22
Priority MEDIUM 43

Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to check integration URL for path traversal which allows an malicious authenticated user to call an arbitrary API via sys…

CVSS 3.1CRITICAL 9.9 Network Low privileges No interaction EPSS 0.00327 Published 2026-05-21 Fixed in 11.7.0, 11.6.1 +3 CWE-22
Priority MEDIUM 43

Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to handle incorrectly reported array lengths which allows malicious user to cause OOM errors and crash the server via sending corrupted msg…

CVSS 3.1HIGH 8.6 Network No auth No interaction EPSS 0.00291 Published 2026-03-16 Fixed in 11.4.0, 11.3.1 +2 CWE-1287
Priority MEDIUM 43

Mattermost versions 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 use prepared statements in the SQL query of boards reordering which allows an attacker to retrieve data from the database…

CVSS 3.1CRITICAL 9.6 Network Low privileges No interaction EPSS 0.00508 Published 2025-02-24 Fixed in 10.4.2, 9.11.8 +2 CWE-89
TI-2025-11397 CVE-2025-12421 · GHSA-mp6x-97xj-9x62

Account Takeover via Code Exchange Endpoint

Priority MEDIUM 43

Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an…

CVSS 3.1CRITICAL 9.9 Network Low privileges No interaction EPSS 0.00446 Published 2025-11-27 Fixed in 11.1.0, 11.0.3 +4 CWE-303
Priority MEDIUM 43

Mattermost versions 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12, 11.0.x <= 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker wit…

CVSS 3.1CRITICAL 9.9 Network Low privileges No interaction EPSS 0.00367 Published 2025-11-27 Fixed in 11.1.0, 10.12.2 +4 CWE-303
Priority MEDIUM 43

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to disallow unsolicited invites to expose access to local channels, when shared channels are enabled, which allows a malicious re…

CVSS 3.1CRITICAL 9.6 Network Low privileges No interaction EPSS 0.00363 Published 2024-08-01 Fixed in 9.10.0, 9.9.1 +4 CWE-284
Priority MEDIUM 43

Mattermost webapp fails to validate route parameters in/<TEAM_NAME>/channels/<CHANNEL_NAME> allowing an attacker to perform a client-side path traversal.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00643 Published 2023-12-06 Fixed in 9.1.2, 9.0.3 +2 CWE-74
Priority MEDIUM 42

Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7 Mattermost failed to validate Dynamic Client Registration redirect URIs by URL component (matching glob patterns against the raw URI string instead…

CVSS 3.1CRITICAL 9.3 Network No auth User interaction EPSS 0.00268 Published 2026-09-14 Fixed in 11.10.0, 11.9.1 +2 CWE-601
Priority MEDIUM 42

Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 with the Jira plugin enabled and Mattermost Jira plugin versions <=4.4.0 fail to enforce authentication and issue-key path re…

CVSS 3.1HIGH 8.3 Network No auth No interaction EPSS 0.00263 Published 2025-12-22 Fixed in 11.2.0, 11.1.1 +5 CWE-303
TI-2024-10746 CVE-2024-11599 · GHSA-9g34-2mp9-r344

Domain Restriction Bypass on Registration

Priority MEDIUM 42

Mattermost versions 10.0.x <= 10.0.1, 10.1.x <= 10.1.1, 9.11.x <= 9.11.3, 9.5.x <= 9.5.11 fail to properly validate email addresses which allows an unauthenticated user to bypass email domain restrictions via carefully c…

CVSS 3.1HIGH 8.2 Network No auth No interaction EPSS 0.00468 Published 2024-11-28 Fixed in 10.2.0, 10.0.2 +3 CWE-754
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