Vulnerability · Published Jan 2, 2024 · Assigned by Mattermost
CVE-2023-47858Details of archived public channels are leaked to members of another team
Medium 4.3
In plain English
A medium-severity improper access control 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 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.4%top 70.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/<team-id>/channels/deleted endpoint.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | no fix listed | GO-2024-2450 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2024-2450 |
| Go | github.com/mattermost/mattermost-server/v6 | 7.8.10 | GHSA-w88v-pjr8-cmv2 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2024-2450 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.1.1 | GHSA-w88v-pjr8-cmv2 |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GO-2024-2450 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 0 – through 9.2.20 – through 9.1.30 – through 9.0.40 – through 8.1.6 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N