Auth bypass in Mattermost
CVE-2025-14573
Mattermost versions 10.11.x <= 10.11.9 fail to enforce invite permissions when updating team settings, which allows team administrators without proper permissions to bypass restrictions and add users to their team via API requests. Mattermost Advisory ID: MMSA-2025-00561
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (4.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Mattermost — versions 10.11.0, 11.3.0, 10.11.10
- Mattermost Server
Weakness classification (CWE)
References
- mattermost.com/security-updates (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-14573?
- CVE-2025-14573 is a low-severity vulnerability in Mattermost, classified under Missing Authorization. CVSS score: 3.8/10. Published 2026-02-16.
- How severe is CVE-2025-14573?
- Low severity. CVSS v3 base score is 3.8 out of 10.