CESS-2025-55074 — Vulnetix

CESS-2025-55074 PUBLISHED CVSS 3.5 LOW

Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents plugin which allows other users to determine when users had read channels via channel member objects

Risk Scores

CVSS 3.1

3.5

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

Timeline

Nov 18, 2025 CVE Published

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