CVE-2023-47858 json
Details of archived public channels are leaked to members of another team
published 2024-01-02 2 y ago modified 2026-09-10 1 mo ago also BIT-mattermost-2023-47858 , EUVD-2024-0444 , GHSA-w88v-pjr8-cmv2 , GO-2024-2450
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/mattermost/mattermost-server/v6 7.8.10
- go github.com/mattermost/mattermost/server/v8 8.1.1
- bitnami mattermost 8.1.7, 9.0.5, 9.1.4, 9.2.3
- Mattermost Mattermost 8.1.7, 9.0.5, 9.1.4, 9.2.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-server/v6 | <7.8.10 all versions |
7.8.10 |
| go | github.com/mattermost/mattermost/server/v8 | <8.1.1 all versions |
8.1.1 |
| bitnami | mattermost | <8.1.7 >=9.0.0, <9.0.5 >=9.1.0, <9.1.4 >=9.2.0, <9.2.3 |
8.1.7 9.0.5 9.1.4 9.2.3 |
| go | github.com/mattermost/mattermost-server | all versions |
no fix listed |
| go | github.com/mattermost/mattermost-server/v5 | all versions |
no fix listed |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-47858
advisory, web
-
github.com
/mattermost/mattermost
package
-
github.com
/advisories/GHSA-w88v-pjr8-cmv2
advisory
Sources
- CVE List CVE-2023-47858
- GitHub Advisory GHSA-w88v-pjr8-cmv2
- NVD CVE-2023-47858
- OSV BIT-mattermost-2023-47858
- OSV GO-2024-2450
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.