What’s Vulnerable › Vulnerabilities
CVE-2023-3587: Inconsistent state in UI after boards permission change by system admin
- Severity: low (CVSS 2.7 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-07-17 · updated 2026-06-17
- Weakness: CWE-862
Description
Mattermost fails to properly show information in the UI, allowing a system admin to modify a board state allowing any user with a valid sharing link to join the board with editor access, without the UI showing the updated permissions.
Affected products
- Mattermost: from 7.8.0 before 7.8.7; from 7.10.0 before 7.10.3 — fixed in 7.10.3, 7.8.7
How to fix
Upgrade to a fixed version: Mattermost 7.10.3, 7.8.7. Check the vendor advisory for mitigations.
References
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