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CVE-2025-58084

Good to know:

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Date: October 13, 2025

Mattermost Desktop App versions <= 5.13.0 fail to validate URLs external to the configured Mattermost servers, allowing an attacker on a server the user has configured to crash the user's application by sending the user a malformed URL.

Severity Score

Related Resources (3)

https://nvd.nist.gov/vuln/detail/CVE-2025-58084
https://mattermost.com/security-updates
https://www.mend.io/vulnerability-database/CVE-2025-58084

Severity Score

Weakness Type (CWE)

Improper Validation of Specified Type of Input

CWE-1287

Top Fix

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Upgrade Version

Upgrade to version github.com/mattermost/desktop - v5.13.1

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CVSS v3.1

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

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