Vulnerability · Published Jan 2, 2024 · Assigned by Mattermost
CVE-2023-48732Keywords that trigger mentions are leaked to other users
Medium 4.3
In plain English
A medium-severity information exposure in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.5%top 60.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 8.1.7+incompatible | GO-2024-2448 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2024-2448 |
| Go | github.com/mattermost/mattermost-server/v6 | 8.1.7 | GHSA-q7rx-w656-fwmv |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2024-2448 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.1.7 | GHSA-q7rx-w656-fwmv |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GO-2024-2448 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 0 – through 8.1.6 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N