CVE-2025-13870

Unauthorized access and subscription vulnerability in Boards

CVSS 3.1 LOWEPSS 0.2%CWE-306

Vexday Risk Score

8Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 3.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

02 dic 2025Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Mattermost versions 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate the user permission when accessing the files and subscribing to the block in Boards, which allows an authenticated user to access other board files and was able to subscribe to the block from other boards that the user does not have access to

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Productos afectados

Mattermost · Mattermost

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Referencias

https://mattermost.com/security-updates