# CVE-2025-13321: Mattermost Desktop App logging sensitive information and fails to clear data on server deletion

> CVE-2025-13321: Mattermost Desktop App logging sensitive information and fails to clear data on server deletion. CVSS 3.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-13321
Last updated: 2026-10-13T11:10:00Z

- Published: 2025-12-17 18:14 UTC · Updated: 2026-10-13 11:10 UTC · Assigner: Mattermost
- CVSS: 3.3 (CVSS 3.1) · Severity: Low · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS: 0.12%, 2th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-532

## Description

Mattermost Desktop App versions \<6.0.0 fail to sanitize sensitive information from Mattermost logs and clear data on server deletion which allows an attacker with access to the users system to gain access to potentially sensitive information via reading the application logs.

## 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-2025-13321)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-13321)
- [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-2025-13321 · Markdown: https://rewindex.com/cve/CVE-2025-13321.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-13321 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T04:05:40.995Z