Vulnerability · Published Feb 29, 2024 · Assigned by Mattermost
CVE-2024-1887Public channel post content accessible without membership when compliance export is enabled
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 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 73.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Mattermost fails to check if compliance export is enabled when fetching posts of public channels allowing a user that is not a member of the public channel to fetch the posts, which will not be audited in the compliance export.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 9.2.5+incompatible, 9.3.1+incompatible | GO-2024-2591 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2024-2591 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2024-2591 |
| Go | github.com/mattermost/mattermost/server/v8 | 9.2.5 | GHSA-fx48-xv6q-6gp3 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.1.9 | GHSA-fx48-xv6q-6gp3 |
| Go | github.com/mattermost/mattermost/server/v8 | 9.3.1 | GHSA-fx48-xv6q-6gp3 |
| Go | github.com/mattermost/mattermost/server/v8 | no fix listed | GO-2024-2591 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 0 – through 8.1.80 – through 9.2.40 – through 9.3.0 |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N