Vulnerability · Published Nov 27, 2023 · Assigned by Mattermost
CVE-2023-6202Insecure Direct Object Reference in /plugins/focalboard/ api/v2/users of Mattermost Boards
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 39% 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 61.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mattermost fails to perform proper authorization in the /plugins/focalboard/api/v2/users endpoint allowing an attacker who is a guest user and knows the ID of another user to get their information (e.g. name, surname, nickname) via Mattermost Boards.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server/v6 | 7.8.13 | GHSA-85jj-c9jr-9jhx |
| Go | github.com/mattermost/mattermost/server/v8 | 9.1.1 | GHSA-85jj-c9jr-9jhx |
| Go | github.com/mattermost/mattermost/server/v8 | 9.0.2 | GHSA-85jj-c9jr-9jhx |
| Go | github.com/mattermost/mattermost/server/v8 | 8.1.4 | GHSA-85jj-c9jr-9jhx |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 0 – through 7.8.120 – through 8.1.30 – through 9.0.10 – through 9.1.0 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N