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Mattermost Server vulnerable to Denial of Service through `@` character prefix inserted into JavaScript field names

šŸ—“ļøĀ 24 May 2022Ā 17:21:02Reported byĀ GitHub Advisory DatabaseTypeĀ 
github
Ā github
šŸ”—Ā github.comšŸ‘Ā 3Ā Views

Mattermost Server before 4.5.0 and 4.4.5, 4.3.4, 4.2.2 crashes from @ prefix in field names, denial of service.

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03 Dec 2025 19:29Current
6.8Medium risk
Vulners AI Score6.8
CVSS 25
CVSS 3.17.5
EPSS0.00422
3