CVE-2024-40884: Unauthorized disabling of invite URL

Severity: low (CVSS 2.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-08-22 · updated 2026-06-17
Weakness: CWE-284

Description

Mattermost versions 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 fail to properly enforce permissions which allows a team admin user without "Add Team Members" permission to disable the invite URL.

Affected products

Mattermost: from 9.5.0 before 9.5.8; 9.10.0 — fixed in 9.5.8

How to fix

Upgrade to a fixed version: Mattermost 9.5.8. Check the vendor advisory for mitigations.

References

https://mattermost.com/security-updates

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