Vulnerability · Published Mar 31, 2023 · Assigned by Mattermost
CVE-2023-1774Unauthorized email invite to a private channel
Medium 4.2
In plain English
A medium-severity missing authorization 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 25% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.2Medium
Exploit odds (30 days)0.3%top 75.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
When processing an email invite to a private channel on a team, Mattermost fails to validate the inviter's permission to that channel, allowing an attacker to invite themselves to a private channel.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 7.1.6 | GHSA-9hj7-v56g-rhf6 |
| Go | github.com/mattermost/mattermost-server | 7.7.2 | GHSA-9hj7-v56g-rhf6 |
| Go | github.com/mattermost/mattermost-server | 7.1.6 | GHSA-9hj7-v56g-rhf6 |
| Go | github.com/mattermost/mattermost-server/v5 | 7.1.6 | GHSA-9hj7-v56g-rhf6 |
| Go | github.com/mattermost/mattermost-server/v6 | 7.1.6 | GHSA-9hj7-v56g-rhf6 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 0 – through 7.7.10 – through 7.1.50 – before 7.8.0 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N