# CVE-2025-46702: Mattermost Playbooks allows privilege escalation through improper access control in playbook run participant management

> CVE-2025-46702: Mattermost Playbooks allows privilege escalation through improper access control in playbook run participant management. CVSS 5.4 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-46702
Last updated: 2026-06-17T09:26:49Z

- Published: 2025-06-30 16:51 UTC · Updated: 2026-06-17 09:26 UTC · Assigner: Mattermost
- CVSS: 5.4 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS: 0.22%, 12th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-863

## Description

Mattermost versions 10.5.x \<= 10.5.5, 9.11.x \<= 9.11.15, 10.8.x \<= 10.8.0, 10.7.x \<= 10.7.2, 10.6.x \<= 10.6.5 fail to properly enforce channel member management permissions when adding participants to playbook runs. This allows authenticated users with member-level permissions to bypass system admin restrictions and add or remove users to/from private channels via the playbook run participants feature, even when the 'Manage Members' permission has been explicitly removed. This can lead to unauthorized access to sensitive channel content and allow guest users to gain channel management privileges.

## 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-2025-46702)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-46702)
- [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-2025-46702 · Markdown: https://rewindex.com/cve/CVE-2025-46702.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-46702 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:47.253Z