MEDIUM4.3

GHSA-w88v-pjr8-cmv2

Mattermost viewing archived public channels permissions vulnerability

Quick fix

GHSA-w88v-pjr8-cmv2 — github.com/mattermost/mattermost-server/v6: upgrade to the fixed version with the command below.

go get github.com/mattermost/mattermost-server/v6@v7.8.10

Details

Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/<team-id>/channels/deleted endpoint.

Are you affected?

Enter the version of the package you're using.

Affected packages

Go/github.com/mattermost/mattermost-server/v6

Introduced in: 0Fixed in: 7.8.10

Fixgo get github.com/mattermost/mattermost-server/v6@v7.8.10

Go/github.com/mattermost/mattermost/server/v8

Introduced in: 0Fixed in: 8.1.1

Fixgo get github.com/mattermost/mattermost/server/v8@v8.1.1

References

https://nvd.nist.gov/vuln/detail/CVE-2023-47858[ADVISORY]
https://github.com/mattermost/mattermost[PACKAGE]
https://mattermost.com/security-updates[WEB]