CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.3. See the original NVD description below for full technical details.
CVE
CVE-2026-28732
Severity
MEDIUM
CVSS
4.3
EPSS
0.15%
Original NVD Description
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 Fail to enforce slash command trigger-word uniqueness during command updates which allows an authenticated team member with Manage Own Slash Commands permission to hijack and impersonate existing system or custom slash commands via editing their own slash command trigger to an already-registered trigger through the command update API. Mattermost Advisory ID: MMSA-2026-00597
Related CVEs
Other vulnerabilities affecting the same vendor(s)