# CVE-2025-3611: Improper Access Control in Mattermost allows System Managers to view team details despite role restrictions

> CVE-2025-3611: Improper Access Control in Mattermost allows System Managers to view team details despite role restrictions. CVSS 3.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-3611
Last updated: 2026-06-17T09:20:17Z

- Published: 2025-05-30 14:22 UTC · Updated: 2026-06-17 09:20 UTC · Assigner: Mattermost
- CVSS: 3.1 (CVSS 3.1) · Severity: Low · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS: 0.22%, 13th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-863

## Description

Mattermost versions 10.7.x \<= 10.7.0, 10.5.x \<= 10.5.3, 9.11.x \<= 9.11.12 fails to properly enforce access control restrictions for System Manager roles, allowing authenticated users with System Manager privileges to view team details they should not have access to via direct API requests to team endpoints, even when explicitly configured with 'No access' to Teams in the System Console.

## Affected vendors and products

- Mattermost: Mattermost

## Tracked companies

- [Mattermost](https://rewindex.com/company/mattermost.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-3611)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-3611)
- [https://mattermost.com/security-updates](https://mattermost.com/security-updates)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-3611 · Markdown: https://rewindex.com/cve/CVE-2025-3611.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-3611 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:36.140Z