CVE-2025-6226

IDOR in CreatePost API allows for timeboxed message disclosure

CVSS 6.5 MEDIUMEPSS 0.3%CWE-306

Vexday Risk Score

13Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 6.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

18 jul 2025Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Mattermost versions 10.5.x <= 10.5.6, 10.8.x <= 10.8.1, 10.7.x <= 10.7.3, 9.11.x <= 9.11.16 fail to verify authorization when retrieving cached posts by PendingPostID which allows an authenticated user to read posts in private channels they don't have access to via guessing the PendingPostID of recently created posts.

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

Productos afectados

Mattermost · Mattermost

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Referencias

https://mattermost.com/security-updates