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Mattermost has an Invite Token Replay Vulnerability via Channel Membership Manipulation

🗓️ 17 Dec 2025 21:30:48Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 5 Views

Mattermost fails to invalidate invite tokens after use, enabling replay to manipulate memberships.

Related
Detection
Refs
Vulners
Node
mattermostmattermost-serverRange<5.3.2-0.20251028000919-d3ed703dc833go
OR
mattermostmattermostRange<8.0.0-20251031095924-e7e23b94e006go
OR
mattermostmattermostRange11.0.0-alpha.111.0.4go
OR
mattermostmattermostRange10.11.0-rc110.11.5go
OR
mattermostmattermostRange10.12.010.12.2go

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26 Dec 2025 15:17Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.13.7
EPSS0.00034
SSVC
5