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CVE-2025-2527

Good to know:

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Date: May 15, 2025

Mattermost versions 10.5.x <= 10.5.2, 9.11.x <= 9.11.11 failed to properly verify a user's permissions when accessing groups, which allows an attacker to view group information via an API request.

Severity Score

Related Resources (5)

https://github.com/advisories/GHSA-h356-3mfw-x368
https://nvd.nist.gov/vuln/detail/CVE-2025-2527
https://github.com/mattermost/mattermost
https://mattermost.com/security-updates
https://www.mend.io/vulnerability-database/CVE-2025-2527

Severity Score

Weakness Type (CWE)

Incorrect Authorization

CWE-863

Top Fix

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Upgrade Version

Upgrade to version github.com/mattermost/mattermost - 9.11.12;github.com/mattermost/mattermost - v10.5.3;github.com/mattermost/mattermost/server/v8 - v8.0.0-20250411064244-844447fbd57c;github.com/mattermost/mattermost-server - v9.11.12+incompatible

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

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