Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-2461

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
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 6.9%
CVSS Severity
CVSS v3 Score 4.3
Products affected by CVE-2026-2461


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