# CVE-2025-3230: Bypass of System Admin User Deactivation Controls for Personal Access Tokens in Mattermost Server

> CVE-2025-3230: Bypass of System Admin User Deactivation Controls for Personal Access Tokens in Mattermost Server. CVSS 5.4 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-3230
Last updated: 2026-06-17T09:19:28Z

- Published: 2025-05-30 14:22 UTC · Updated: 2026-06-17 09:19 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-303

## Description

Mattermost versions 10.7.x \<= 10.7.0, 10.6.x \<= 10.6.2, 10.5.x \<= 10.5.3, 9.11.x \<= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via continued usage of previously issued tokens.

## 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-2025-3230)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-3230)
- [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-2025-3230 · Markdown: https://rewindex.com/cve/CVE-2025-3230.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-3230 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:59.288Z