What’s Vulnerable › Vulnerabilities
CVE-2023-45223: Users full name disclosure through Mattermost Boards with Show Full Name Option disabled
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-11-27 · updated 2026-06-17
- Weakness: CWE-200
Description
Mattermost fails to properly validate the "Show Full Name" option in a few endpoints in Mattermost Boards, allowing a member to get the full name of another user even if the Show Full Name option was disabled.
Affected products
- Mattermost App Framework: through 7.8.12; from 8.0.0 through 8.1.3
References
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