CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NCVE-2023-48732
Medium (4.3) in mattermost mattermost server. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in github.com/mattermost/mattermost/server/v8 8.1.7.
Mattermost fails to scope the WebSocket response around notified users to a each user separately resulting in the WebSocket broadcasting the information about who was notified about a post to everyone else in the channel.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
- CWE
- CWE-200
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost_server
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-q7rx-w656-fwmv | Go | github.com/mattermost/mattermost/server/v8 | <8.1.7 | 8.1.7 |
| GHSA-q7rx-w656-fwmv | Go | github.com/mattermost/mattermost-server/v6 | <8.1.7 | 8.1.7 |
| GO-2024-2448 | Go | github.com/mattermost/mattermost-server | <8.1.7+incompatible | 8.1.7+incompatible |
| GO-2024-2448 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2024-2448 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2024-2448 | Go | github.com/mattermost/mattermost/server/v8 | all versions | no fix published |