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Mattermost Server is vulnerable to webhook and slash command manipulation

🗓️ 24 May 2022 17:21:04Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 1 Views

Mattermost Server pre 4.3.0/4.2.1/4.1.2 lets fake system messages via webhooks and slash commands.

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05 Dec 2025 22:00Current
7High risk
Vulners AI Score7
CVSS 24
CVSS 3.14.3
EPSS0.00231
1