CVE-2025-47870 — Missing Authentication for Critical Function in Mattermost Mattermost-server

CWE-306 — Missing Authentication for Critical Function5 documents4 sources
Severity
4.3MEDIUMNVD
EPSS
0.0%
top 88.06%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Github.com Mattermost Mattermost-serverGithub.com Mattermost Mattermost Server V8Mattermost Server+3 more
Timeline
PublishedAug 21
Latest updateAug 29

Description

Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.9.x <= 10.9.2 fail to sanitize the team invite ID in the POST /api/v4/teams/:teamId/restore endpoint which allows an team admin with no member invite privileges to get the team’s invite id.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NExploitability: 2.8 | Impact: 1.4

Affected Packages6 packages

▶NVDmattermost/mattermost_server9.11.0 — 9.11.18+3
▶Gogithub.com/mattermost_mattermost-server9.11.0+incompatible — 9.11.18+incompatible+7
▶Gogithub.com/mattermost_mattermost_server_v8< 8.0.0-20250708065844-b38e2eccda18
▶CVEListV5mattermost/mattermost10.8.0 — 10.8.3+3

🔴Vulnerability Details

4
OSV
Mattermost Does Not Sanitize the Team Invite ID in github.com/mattermost/mattermost-server↗2025-08-29
▶
CVEList
Team invite ID leaked to team admin with no member invite privileges↗2025-08-21
▶
OSV
Mattermost Does Not Sanitize the Team Invite ID↗2025-08-21
▶
GHSA
Mattermost Does Not Sanitize the Team Invite ID↗2025-08-21
▶
CVE-2025-47870 — MEDIUM severity | cvebase