GHSA-9hj7-v56g-rhf6

ghsaUSosv

Mattermost fails to properly authentication inviter's permissions to private channel

view advisory published 2023-03-31Licence: CC-BY-4.0

When processing an email invite to a private channel on a team, Mattermost fails to validate the inviter's permission to that channel, allowing an attacker to invite themselves to a private channel. [Issue Identifier](https://mattermost.com/security-updates/): MMSA-2023-00137

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2023-1774US	medium5.4OT elevated	0.32% (25th)	—	2023-03-31
When processing an email invite to a private channel on a team, Mattermost fails to validate the inviter's permission to that channel, allowing an attacker to invite themselves to…

references

External citations — patches, advisories, analysis.

https://mattermost.com/security-updatesWEB
https://nvd.nist.gov/vuln/detail/CVE-2023-1774ADVISORY

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