LOW3.7

GHSA-9w97-9rqx-8v4j

Mattermost allows demoted guests to change group names

Quick fix

GHSA-9w97-9rqx-8v4j — github.com/mattermost/mattermost/server/v8: upgrade to the fixed version with the command below.

go get github.com/mattermost/mattermost/server/v8@v8.1.7

Details

Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names.

Are you affected?

Enter the version of the package you're using.

Affected packages

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

Introduced in: 0Fixed in: 8.1.7

Fixgo get github.com/mattermost/mattermost/server/v8@v8.1.7

References

https://nvd.nist.gov/vuln/detail/CVE-2023-50333[ADVISORY]
https://github.com/mattermost/mattermost/commit/61dd452fb2fcd3ac6f7b2e050f7f0a93a92d95fc[WEB]
https://github.com/mattermost/mattermost[PACKAGE]
https://mattermost.com/security-updates[WEB]