CVE-2023-48732
Mattermost notified all users in the channel when using WebSockets to respond individually in github.com/mattermost/mattermost-server
4.3
MEDIUM
CVSS 3.1
EPSS 0.58%
Description
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.
How to fix CVE-2023-48732
To remediate CVE-2023-48732, upgrade the affected package to a fixed version below.
- —upgrade to 8.1.7 or later
- —upgrade to 8.1.7+incompatible or later
- —no fix listed
- —upgrade to 8.1.7 or later
- —no fix listed
- —no fix listed
- —upgrade to 8.1.7 or later
Is CVE-2023-48732 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (7)
- from 0, < 8.1.7
- from 0, < 8.1.7+incompatible
- from 0
- from 0, < 8.1.7
- from 0
- from 0
- from 0, < 8.1.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |