CVE-2023-2797: Mattermost

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Mattermost fails to sanitize code permalinks, allowing an attacker to preview code from private repositories by posting a specially crafted permalink on a channel.

Affected products

• Mattermost Mattermost: from 7.1.0, up to and including 7.1.9; from 7.8.0, up to and including 7.8.4; version 7.10.0 only

Published 2023-06-16. Last modified 2026-06-17.