Medium severity4.2NVD Advisory· Published Mar 31, 2023· Updated Jun 17, 2026
CVE-2023-1774
CVE-2023-1774
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost-serverGo | >= 3.3.0, < 7.1.6 | 7.1.6 |
github.com/mattermost/mattermost-serverGo | >= 7.7.0, < 7.7.2 | 7.7.2 |
github.com/mattermost/mattermost-serverGo | >= 7.1.0, < 7.1.6 | 7.1.6 |
github.com/mattermost/mattermost-server/v5Go | >= 5.0.0, < 7.1.6 | 7.1.6 |
github.com/mattermost/mattermost-server/v6Go | >= 6.0.0, < 7.1.6 | 7.1.6 |
Affected products
7cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: <7.1.6
- cpe:2.3:a:mattermost:mattermost_server:7.7.1:*:*:*:*:*:*:*
- (no CPE)range: 0
- osv-coords4 versionspkg:bitnami/mattermostpkg:golang/github.com/mattermost/mattermost-serverpkg:golang/github.com/mattermost/mattermost-server/v5pkg:golang/github.com/mattermost/mattermost-server/v6
< 7.1.6+ 3 more
- (no CPE)range: < 7.1.6
- (no CPE)range: >= 3.3.0, < 7.1.6
- (no CPE)range: >= 5.0.0, < 7.1.6
- (no CPE)range: >= 6.0.0, < 7.1.6
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-9hj7-v56g-rhf6ghsaADVISORY
- mattermost.com/security-updates/nvdVendor Advisory
- nvd.nist.gov/vuln/detail/CVE-2023-1774ghsaADVISORY
- github.com/mattermost/mattermost-serverghsaPACKAGE
- mattermost.com/security-updatesghsaWEB
News mentions
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