CVE-2023-3613

Guest accounts invited and added to channels by Welcomebot plugin

CVSS 3.5 LOWEPSS 0.3%CWE-863

Vexday Risk Score

8Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 3.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

17 Jul 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Mattermost WelcomeBot plugin fails to to validate the membership status when inviting or adding users to channels allowing guest accounts to be added or invited to channels by default.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Affected products

Mattermost · Mattermost Plugins

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References

https://mattermost.com/security-updates