CVE-2025-14573 PUBLISHED

Team Admin Bypass of Invite Permissions via allow_open_invite Field

Assigner: Mattermost
Reserved: 12.12.2025 Published: 16.02.2026 Updated: 16.02.2026

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

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
CVSS Score: 3.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	High	Integrity Impact	Low
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Mattermost
Product	Mattermost
Versions	Default: unaffected affected from 10.11.0 to 10.11.9 (incl.) Version 11.3.0 is unaffected Version 10.11.10 is unaffected

Solutions

Update Mattermost to versions 11.3.0, 10.11.10 or higher.

Credits

omarAhmed1 finder

References

MMSA-2025-00561

Problem Types

CWE-862: Missing Authorization CWE