GHSA-322v-vh2g-qvpv Mattermost Fails to Restrict Certain Operations on System Admins

• Go github.com/mattermost/mattermost-server: >= 10.5.0, < 10.5.2 → fixed in 10.5.2 • Go github.com/mattermost/mattermost-server: >= 10.4.0, < 10.4.4 → fixed in 10.4.4 • Go github.com/mattermost/mattermost-server: >= 9.11.0, < 9.11.10 → fixed in 9.11.10 • Go github.com/mattermost/mattermost/server/v8: >= 10.5.0, < 10.5.2 → fixed in 10.5.2 • Go github.com/mattermost/mattermost/server/v8: >= 10.4.0, < 10.4.4 → fixed in 10.4.4 • Go github.com/mattermost/mattermost/server/v8: >= 9.11.0, < 9.11.10 → fixed in 9.11.10 • Go github.com/mattermost/mattermost/server/v8: < 8.0.0-20250227102013-aa4623a93199 → fixed in 8.0.0-20250227102013-aa4623a93199

Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to restrict certain operations on system admins to only other system admins, which allows delegated granular administration users with the "Edit Other Users" permission to perform unauthorized modifications to system administrators via improper permission validation.