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CVE-2026-2461

MEDIUM CVSS: 4.3 Published: 2026-03-16 Modified: 2026-06-17

Description

Mattermost Plugins versions <=11.3 11.0.3 11.2.2 10.10.11.0 fail to implement authorisation checks on comment block modifications, which allows an authorised attacker with editor permission to modify comments created by other board members. Mattermost Advisory ID: MMSA-2025-00559

Affected Platforms

Mattermost Mattermost Server

Weakness Type

CWE-639

References